wlan: Enhancements to ensure a better BT session (VOIP)

Disable aggregation, scan and be in full power mode
during an active BT session (VOIP). Also, rename the
parameter WNI_CFG_DEL_ALL_RX_BA_SESSIONS_2_4_G_BTC_APMIN
to WNI_CFG_DEL_ALL_RX_TX_BA_SESSIONS_2_4_G_BTC_APMIN since
both the TX and RX sessions are torn down.

Change-Id: I4c76edabab26422935201f53d04ddbdb91d1c205
CRs-Fixed: 705363.
diff --git a/CORE/MAC/inc/aniGlobal.h b/CORE/MAC/inc/aniGlobal.h
index e319d22..98aec33 100644
--- a/CORE/MAC/inc/aniGlobal.h
+++ b/CORE/MAC/inc/aniGlobal.h
@@ -1071,6 +1071,8 @@
     v_BOOL_t isMuBfsessionexist;
 #endif
 
+    v_BOOL_t isCoexScoIndSet;
+
 } tAniSirGlobal;
 
 #ifdef FEATURE_WLAN_TDLS