qcacld-3.0: Add wakelock for Roam Handoff

After roaming, FW tries to detect for a subnet change and if
there is a change, then it wakes up the host if it is suspended.
Upon waking up, host handles the roam synch and indicates event
to supplicant. The event to supplicant from host could be
delayed.

Fix is to add wakelock for roam handoff.

Change-Id: I777d37993784c623542dad898e255205ec1bae53
CRs-Fixed: 1115355

core/wma/inc/wma.h

@@ -310,11 +310,12 @@ enum ds_mode {
 #define WMA_ASSOC_REQ_RECV_WAKE_LOCK_DURATION   (5 * 1000)     /* in msec */
 #define WMA_DEAUTH_RECV_WAKE_LOCK_DURATION      (5 * 1000)     /* in msec */
 #define WMA_DISASSOC_RECV_WAKE_LOCK_DURATION    (5 * 1000)     /* in msec */
+#define WMA_ROAM_HO_WAKE_LOCK_DURATION          (500)          /* in msec */
 #ifdef FEATURE_WLAN_AUTO_SHUTDOWN
 #define WMA_AUTO_SHUTDOWN_WAKE_LOCK_DURATION    (5 * 1000)     /* in msec */
 #endif
 #define WMA_BMISS_EVENT_WAKE_LOCK_DURATION      (4 * 1000)     /* in msec */
-#define WMA_FW_RSP_EVENT_WAKE_LOCK_DURATION      (3 * 1000)  /* in msec */
+#define WMA_FW_RSP_EVENT_WAKE_LOCK_DURATION     (3 * 1000)     /* in msec */
 
 #define WMA_TXMIC_LEN 8
 #define WMA_RXMIC_LEN 8