staging: wilc1000: fix parameter name of function declaration

This patch changes struct host_if_drv of host_int_add_wep_key_bss_sta
function declaration from hWFIDrv to hif_drv.
With this change, first parameter name of this function declaration and
definition has same name as hif_drv.
Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wilc1000/host_interface.h

@@ -403,7 +403,7 @@ int host_int_set_wep_default_key(struct host_if_drv *hif_drv, u8 index);
  *  @date		8 March 2012
  *  @version		1.0
  */
-int host_int_add_wep_key_bss_sta(struct host_if_drv *hWFIDrv, const u8 *pu8WepKey, u8 u8WepKeylen, u8 u8Keyidx);
+int host_int_add_wep_key_bss_sta(struct host_if_drv *hif_drv, const u8 *pu8WepKey, u8 u8WepKeylen, u8 u8Keyidx);
 /**
  *  @brief              host_int_add_wep_key_bss_ap
  *  @details    valid only in AP mode if External Supplicant support is enabled.