staging: rtl8192u: make in r8192U_core.c the local functions static

Make some local functions static.

The local functions are CamResetAllEntry, tx_timeout,
rtl8192_data_hard_stop, rtl8192_data_hard_resume, rtl8192_hard_data_xmit,
rtl8192_hard_start_xmit, rtl8192_config_rate, rtl8192_update_cap,
rtl8192_net_update, MRateToHwRate8190Pci, tl8192_link_change,
rtl8192_update_beacon, WDCAPARA_ADD, rtl8192_qos_activate,
GetHalfNmodeSupportByAPs819xUsb, rtl8192_refresh_supportrate,
rtl8192_getSupportedWireleeMode, rtl8192_SetWirelessMode,
rtl8192_get_channel_map, rtl8192_init,
rtl8192_hwconfig, rtl8192_adapter_start, TxCheckStuck,
rtl819x_ifcheck_resetornot, CamRestoreAllEntry, rtl819x_ifsilentreset,
rtl819x_update_rxcounts, rtl8192_open, r8192_set_mac_adr, rtl8192_ioctl,
HwRateToMRate90, rtl819x_translate_todbm, rtl8192_process_phyinfo,
rtl8192_record_rxdesc_forlateruse, rtl8192_rx_nomal,
rtl819xusb_process_received_packet, rtl8192_rx_cmd.

Fix the following sparse warnings in r8192U_core.c

drivers/staging/rtl8192u/r8192U_core.c:241:6: warning: symbol 'CamResetAllEntry' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:676:6: warning: symbol 'tx_timeout' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:1014:6: warning: symbol 'rtl8192_data_hard_stop' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:1020:6: warning: symbol 'rtl8192_data_hard_resume' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:1028:6: warning: symbol 'rtl8192_hard_data_xmit' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:1056:5: warning: symbol 'rtl8192_hard_start_xmit' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:1380:6: warning: symbol 'rtl8192_config_rate' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:1427:6: warning: symbol 'rtl8192_update_cap' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:1449:6: warning: symbol 'rtl8192_net_update' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:1677:4: warning: symbol 'MRateToHwRate8190Pci' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:2043:6: warning: symbol 'rtl8192_link_change' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:2075:6: warning: symbol 'rtl8192_update_beacon' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:2090:5: warning: symbol 'WDCAPARA_ADD' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:2091:6: warning: symbol 'rtl8192_qos_activate' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:2319:6: warning: symbol 'GetHalfNmodeSupportByAPs819xUsb' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:2333:6: warning: symbol 'rtl8192_refresh_supportrate' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:2344:4: warning: symbol 'rtl8192_getSupportedWireleeMode' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:2363:6: warning: symbol 'rtl8192_SetWirelessMode' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:2783:7: warning: symbol 'rtl8192_get_channel_map' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:2796:7: warning: symbol 'rtl8192_init' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:2844:6: warning: symbol 'rtl8192_hwconfig' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:2927:6: warning: symbol 'rtl8192_adapter_start' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:3183:12: warning: symbol 'TxCheckStuck' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:3286:12: warning: symbol 'rtl819x_ifcheck_resetornot' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:3325:6: warning: symbol 'CamRestoreAllEntry' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:3401:6: warning: symbol 'rtl819x_ifsilentreset' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:3521:6: warning: symbol 'rtl819x_update_rxcounts' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:3638:5: warning: symbol 'rtl8192_open' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:3758:5: warning: symbol 'r8192_set_mac_adr' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:3774:5: warning: symbol 'rtl8192_ioctl' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:3865:4: warning: symbol 'HwRateToMRate90' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:3951:6: warning: symbol 'rtl819x_translate_todbm' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:3967:6: warning: symbol 'rtl8192_process_phyinfo' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:4453:6: warning: symbol 'rtl8192_record_rxdesc_forlateruse' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:4725:6: warning: symbol 'rtl8192_rx_nomal' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:4875:6: warning: symbol 'rtl819xusb_process_received_packet' was not declared. Should it be static?
drivers/staging/rtl8192u/r8192U_core.c:4936:6: warning: symbol 'rtl8192_rx_cmd' was not declared. Should it be static?
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>