qcacld-3.0: support 2.4G 1x1 + 5G 1x1 DBS config for FW

Currently host doesn't support below configuration for FW:
gEnable2x2=0 (disable 2x2 mode)
dual_mac_feature=0(ENABLE_DBS_CXN_AND_SCAN)
tx_chain_mask_2g=0x1
rx_chain_mask_2g=0x1
tx_chain_mask_5g=4
rx_chain_mask_5g=4
disable_rx_mrc_2g=1
disable_tx_mrc_2g=1
disable_tx_mrc_5g=1
disable_rx_mrc_5g=1
gSetTxChainmask1x1=0
gSetRxChainmask1x1=0

Now there is a new requirement for QCA6595:
1. RF chain0: WLAN 2.4G with 1x1 antenna
2. EF chain1: WLAN 5G with 1x1 antenna
3. RF chain1: BT 2.4G with 1x1 antenna

To support this new requirement, need to exclude the case in
condition check when gEnable2x2=0 and dual_mac_feature=0.

Change-Id: Ic08a4b7f5eb4beece867d7d7b4ae1796e67eae85
CRs-Fixed: 3074098

components/mlme/dispatcher/src/wlan_mlme_api.c

@@ -1060,7 +1060,8 @@ bool wlan_mlme_configure_chain_mask_supported(struct wlan_objmgr_psoc *psoc)
 	enable2x2 = mlme_obj->cfg.vht_caps.vht_cap_info.enable2x2;
 
 	if ((enable2x2 && !enable_bt_chain_sep) || as_enabled ||
-	   (!hw_dbs_2x2_cap && dual_mac_feature != DISABLE_DBS_CXN_AND_SCAN)) {
+	   (!hw_dbs_2x2_cap && (dual_mac_feature != DISABLE_DBS_CXN_AND_SCAN) &&
+	    enable2x2)) {
 		mlme_legacy_debug("Cannot configure chainmask enable_bt_chain_sep %d as_enabled %d enable2x2 %d hw_dbs_2x2_cap %d dual_mac_feature %d",
 				  enable_bt_chain_sep, as_enabled, enable2x2,
 				  hw_dbs_2x2_cap, dual_mac_feature);