wlan: Enable ARP logs by default.

Currently ARP logs are not enabled by default.
As part of change, enable arp logs by default.

Change-Id: I6f2598bafa95e9224affb1c9c357f248515b4e4e
CRs-Fixed: 918337
diff --git a/CORE/HDD/src/wlan_hdd_main.c b/CORE/HDD/src/wlan_hdd_main.c
index 42a789f..11a8d4d 100755
--- a/CORE/HDD/src/wlan_hdd_main.c
+++ b/CORE/HDD/src/wlan_hdd_main.c
@@ -10330,7 +10330,8 @@
        //EAPOL and DHCP
        if (!pHddCtx->cfg_ini->gEnableDebugLog)
            pHddCtx->cfg_ini->gEnableDebugLog =
-           VOS_PKT_PROTO_TYPE_EAPOL | VOS_PKT_PROTO_TYPE_DHCP;
+           VOS_PKT_PROTO_TYPE_EAPOL | VOS_PKT_PROTO_TYPE_DHCP |
+           VOS_PKT_PROTO_TYPE_ARP;
    }
 
    if (pHddCtx->cfg_ini->wlanLoggingEnable &&