qcacld-3.0: Enable WLAN_PRE_CAC for mobile router

Currently, for mobile router the DFS CAC feature is not working
because PRE_CAC_SUPPORT does not define.

Change-Id: I5eb335fe738de8438b8ec60f4d69875cb0a45d6e
CRs-Fixed: 3397747

configs/default_defconfig

@@ -354,9 +354,6 @@ CONFIG_WLAN_SYSFS := y
 
 CONFIG_THERMAL_STATS_SUPPORT := y
 
-#Flag to enable pre cac feature
-CONFIG_FEATURE_WLAN_PRE_CAC := y
-
 ifeq ($(CONFIG_WLAN_SYSFS), y)
 	CONFIG_WLAN_SYSFS_STA_INFO := y
 	CONFIG_WLAN_SYSFS_CHANNEL := y
@@ -410,6 +407,9 @@ endif
 
 CONFIG_QCACLD_FEATURE_GREEN_AP := y
 
+#Flag to enable pre cac feature
+CONFIG_FEATURE_WLAN_PRE_CAC := y
+
 #Flag to enable Android Packet Filtering
 CONFIG_QCACLD_FEATURE_APF := y