qcacld-3.0: Decrease default waiting timer value for interface up

Currently default waiting timer value is 100 sec which is too large,
change the timer value to 15 sec.

Change-Id: If116f9ace2e2c0c41438c4be9c9fa834ae9e4a60
CRs-Fixed: 2019739

core/hdd/inc/wlan_hdd_cfg.h

@@ -1335,7 +1335,7 @@ typedef enum {
 #define CFG_INTERFACE_CHANGE_WAIT_NAME    "gInterfaceChangeWait"
 #define CFG_INTERFACE_CHANGE_WAIT_MIN     (10)
 #define CFG_INTERFACE_CHANGE_WAIT_MAX     (500000)
-#define CFG_INTERFACE_CHANGE_WAIT_DEFAULT (100000)
+#define CFG_INTERFACE_CHANGE_WAIT_DEFAULT (15000)
 
 /*
  * To enable, set gRoamIntraBand=1 (Roaming within band)