qcacmn: Disable servicing of uninitialized WBM2SW rings

Set tx completion masks for WBM2SW1/2 to zero for MCL.
This is to prevent accessing of tx completions rings whose
contexts are shared with REO rings.

Change-Id: Id1b8a98495668225ced71141f00d9f2094f37cd2
CRs-Fixed: 2106708

wlan_cfg/wlan_cfg.c

@@ -193,9 +193,9 @@ static const int tx_ring_mask[WLAN_CFG_INT_NUM_CONTEXTS] = {
 						WLAN_CFG_TX_RING_MASK_0,
 						0,
 						0,
-						WLAN_CFG_TX_RING_MASK_1,
-						WLAN_CFG_TX_RING_MASK_2,
-						WLAN_CFG_TX_RING_MASK_3};
+						0,
+						0,
+						0};
 
 static const int rx_ring_mask[WLAN_CFG_INT_NUM_CONTEXTS] = {
 					0,