mwifiex: shorten per channel scan time

Currently the scan time per channel for active scanning is set to
200ms. It takes quite a while to finsh scanning on all channels,
especially with a dual band configuration.

Change the per channel scan time settings to the following values:

passive scan: 110ms
active scan: 30ms
specific scan: 30ms

Above settings have been tested on x86 and arm platforms.
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/mwifiex/main.h

@@ -79,9 +79,9 @@ enum {
 
 #define SCAN_BEACON_ENTRY_PAD			6
 
-#define MWIFIEX_PASSIVE_SCAN_CHAN_TIME	200
-#define MWIFIEX_ACTIVE_SCAN_CHAN_TIME	200
-#define MWIFIEX_SPECIFIC_SCAN_CHAN_TIME	110
+#define MWIFIEX_PASSIVE_SCAN_CHAN_TIME	110
+#define MWIFIEX_ACTIVE_SCAN_CHAN_TIME	30
+#define MWIFIEX_SPECIFIC_SCAN_CHAN_TIME	30
 
 #define SCAN_RSSI(RSSI)					(0x100 - ((u8)(RSSI)))