qcacld-3.0: Decrease gStaKeepAlivePeriod to 60

Modify the keep alive time as 60 secs by default to cater to rouge AP
behavior in some cases

Change-Id: Id2bb1b61e5fcdc5994451c981bd1171c1860c7cf
CRs-Fixed: 2258825

core/hdd/inc/wlan_hdd_cfg.h

@@ -3447,7 +3447,7 @@ enum hdd_dot11_mode {
 #define CFG_INFRA_STA_KEEP_ALIVE_PERIOD_NAME          "gStaKeepAlivePeriod"
 #define CFG_INFRA_STA_KEEP_ALIVE_PERIOD_MIN           (0)
 #define CFG_INFRA_STA_KEEP_ALIVE_PERIOD_MAX           (65535)
-#define CFG_INFRA_STA_KEEP_ALIVE_PERIOD_DEFAULT       (90)
+#define CFG_INFRA_STA_KEEP_ALIVE_PERIOD_DEFAULT       (60)
 
 /**
  * enum station_keepalive_method - available keepalive methods for stations