qcacld-3.0: Config special 4 ports dual SAP+dual STA

Enable following special 4 ports concurrency for Auto HST
platform.
(SAP+STA) (2.4G MAC SCC)+(SAP+STA) (5G MAC SCC).

Change-Id: I6ab34606a98c1e4a670de63e12e54f2becd4d1d4
CRs-Fixed: 2457713
diff --git a/Kbuild b/Kbuild
index f113518..137b91c 100644
--- a/Kbuild
+++ b/Kbuild
@@ -2808,6 +2808,8 @@
 
 cppflags-$(CONFIG_SLUB_DEBUG_ON) += -DHIF_CONFIG_SLUB_DEBUG_ON
 
+ccflags-$(CONFIG_FOURTH_CONNECTION) += -DFEATURE_FOURTH_CONNECTION
+
 KBUILD_CPPFLAGS += $(cppflags-y)
 
 # Currently, for versions of gcc which support it, the kernel Makefile
diff --git a/configs/qca6390_defconfig b/configs/qca6390_defconfig
index 2db953f..1edfac5 100644
--- a/configs/qca6390_defconfig
+++ b/configs/qca6390_defconfig
@@ -723,3 +723,5 @@
 ifeq (y,$(findstring y,$(CONFIG_ARCH_MSM) $(CONFIG_ARCH_QCOM)))
 CONFIG_WLAN_FEATURE_DP_BUS_BANDWIDTH := y
 endif
+
+CONFIG_FOURTH_CONNECTION := y