wlan: Host Offload Cleanup

Adding a central funtion to control all the offloads supported in our
driver. It can enable/disable all the offloads when called with
respective flag. Currently added ARPOffload and GTKOffload with NSOffload
pending.

Change-Id: Ia0946fc17c3cd61c178289bb2647e888a441fa9a
CRs-fixed: 490232
diff --git a/CORE/HDD/src/wlan_hdd_cfg80211.c b/CORE/HDD/src/wlan_hdd_cfg80211.c
index 88435eb..4bbdc9f 100644
--- a/CORE/HDD/src/wlan_hdd_cfg80211.c
+++ b/CORE/HDD/src/wlan_hdd_cfg80211.c
@@ -6747,7 +6747,7 @@
         (eConnectionState_Associated ==
              (WLAN_HDD_GET_STATION_CTX_PTR(pAdapter))->conn_info.connState))
     {
-        vos_status = hdd_conf_hostarpoffload(pAdapter, TRUE);
+        vos_status = hdd_conf_arp_offload(pAdapter, TRUE);
         if (!VOS_IS_STATUS_SUCCESS(vos_status))
         {
             hddLog(VOS_TRACE_LEVEL_INFO,