wlan: Add ini param to control antenna diversity

Add gAntennaDiversity parameter in ini file with
values mapping to the following behavior:
0 = disabled
1 = Ant 1
2 = Ant 2
3 = Adaptive

CRs-Fixed: 518527
Change-Id: I27e8a02cb4a8e2e3cbd2ae37c12cb8523103cbce
diff --git a/CORE/WDA/src/wlan_qct_wda.c b/CORE/WDA/src/wlan_qct_wda.c
index 5c7b655..b0ff216 100644
--- a/CORE/WDA/src/wlan_qct_wda.c
+++ b/CORE/WDA/src/wlan_qct_wda.c
@@ -1568,6 +1568,21 @@
    tlvStruct = (tHalCfg *)(((tANI_U8 *) tlvStruct
                             + sizeof(tHalCfg) + tlvStruct->length));
 
+   /* QWLAN_HAL_CFG_ANTENNA_DIVERSITY */
+   tlvStruct->type = QWLAN_HAL_CFG_ANTENNA_DIVERSITY;
+   tlvStruct->length = sizeof(tANI_U32);
+   configDataValue = (tANI_U32 *)(tlvStruct + 1);
+   if (wlan_cfgGetInt(pMac, WNI_CFG_ANTENNA_DIVESITY,
+                                            configDataValue ) != eSIR_SUCCESS)
+   {
+      VOS_TRACE( VOS_MODULE_ID_WDA, VOS_TRACE_LEVEL_ERROR,
+               "Failed to get value for WNI_CFG_ANTENNA_DIVESITY");
+      goto handle_failure;
+   }
+
+   tlvStruct = (tHalCfg *)( (tANI_U8 *) tlvStruct
+                            + sizeof(tHalCfg) + tlvStruct->length) ;
+
    wdiStartParams->usConfigBufferLen = (tANI_U8 *)tlvStruct - tlvStructStart ;
 #ifdef WLAN_DEBUG
    {