wlan: Toggle ARP packets BD rates and send using TID 3

To make sure AP receives ARP packets, sending ARP packets on BD
rates 1(1Mbps) and 3(6Mbps) alternatively and for reliability
sending on TID 3.
This support will be enabled when ini parameter, gToggleArpBDRates
is set to TRUE. By default ini parameter will be set to FALSE.

Change-Id: I858c696f9299c37d564cc3e04ea813081e79acad
CRs-Fixed: 843313
diff --git a/CORE/TL/src/wlan_qct_tli.h b/CORE/TL/src/wlan_qct_tli.h
index af20126..b9f3744 100644
--- a/CORE/TL/src/wlan_qct_tli.h
+++ b/CORE/TL/src/wlan_qct_tli.h
@@ -122,6 +122,7 @@
 
 /*WAPI protocol type */
 #define WLANTL_LLC_WAI_TYPE              0x88b4
+#define WLANTL_ETHERTYPE_ARP             0x0806
 
 #ifdef FEATURE_WLAN_TDLS
 #define WLANTL_LLC_TDLS_TYPE             0x890d
@@ -695,6 +696,8 @@
 
   WLANTL_InterfaceStatsType         interfaceStats;
 #endif
+  /* BD Rate for transmitting ARP packets */
+  v_U8_t arpRate;
 }WLANTL_STAClientType;
 
 /*---------------------------------------------------------------------------