msmnile_au: wlan: enable btc chain mode feature for qca6390/qcn7605

Enable CONFIG_FEATURE_COEX and CONFIG_QCACLD_FEATURE_BTC_CHAIN_MODE.
Now nl80211 QCA vendor command for btc chain mode is available.

Change-Id: I60922a358c6ba2e3671c6f27e91136c69f05eafe
CRs-Fixed: 2515922

msmnile_au/wlan.mk

@@ -45,3 +45,11 @@ else
 # Value-added AOSP: STA + SAP + P2P or NAN
 WIFI_HAL_INTERFACE_COMBINATIONS := {{{STA}, 1}, {{AP}, 1}, {{P2P, NAN}, 1}}
 endif
+
+# Override WLAN configurations
+# Usage:
+# To disable WLAN_CFG_1/WLAN_CFG_3 and enable WLAN_CFG_2 for <wlan_chip>
+# (<wlan_chip> is from $TARGET_WLAN_CHIP).
+#   WLAN_CFG_OVERRIDE_<wlan_chip> := WLAN_CFG_1=n WLAN_CFG_2=y WLAN_CFG_3=n
+WLAN_CFG_OVERRIDE_qca6390 := CONFIG_FEATURE_COEX=y CONFIG_QCACLD_FEATURE_BTC_CHAIN_MODE=y
+WLAN_CFG_OVERRIDE_qcn7605 := CONFIG_FEATURE_COEX=y CONFIG_QCACLD_FEATURE_BTC_CHAIN_MODE=y