qcacld-3.0: Add support for 11ax draft3.0 spec

Add support for 11ax draft3.0 spec.

Change-Id: I272d9f4ec6b3a2a23ad708265dd0afaf289c1b95
CRs-Fixed: 2294255
diff --git a/Kbuild b/Kbuild
old mode 100755
new mode 100644
index 085db37..28f42de
--- a/Kbuild
+++ b/Kbuild
@@ -14,7 +14,6 @@
 	WLAN_COMMON_ROOT := ../qca-wifi-host-cmn
 	WLAN_COMMON_INC := $(WLAN_ROOT)/$(WLAN_COMMON_ROOT)
 endif
-
 WLAN_COMMON_ROOT ?= ../qca-wifi-host-cmn
 WLAN_COMMON_INC ?= $(WLAN_ROOT)/$(WLAN_COMMON_ROOT)
 
@@ -2214,6 +2213,7 @@
 
 cppflags-$(CONFIG_WLAN_FEATURE_11AX) += -DWLAN_FEATURE_11AX
 cppflags-$(CONFIG_WLAN_FEATURE_11AX) += -DWLAN_FEATURE_11AX_BSS_COLOR
+cppflags-$(CONFIG_WLAN_FEATURE_11AX) += -DSUPPORT_11AX_D3
 
 cppflags-$(CONFIG_LITHIUM) += -DFEATURE_AST