qcacld-3.0: Add build configuration for the qdf notifier chain

In qdf new os specicfic notifier chain has been added, enable
the build configration for the feature.

Change-Id: Ic08b3ebc3b173839496428a27d0eb4d7a1633cb6
CRs-Fixed: 2648245
diff --git a/Kbuild b/Kbuild
index a527065..6413efb 100644
--- a/Kbuild
+++ b/Kbuild
@@ -646,6 +646,10 @@
 	QDF_OBJS += $(QDF_OBJ_DIR)/qdf_tracker.o
 endif
 
+ifeq ($(CONFIG_WLAN_HANG_EVENT), y)
+	QDF_OBJS += $(QDF_OBJ_DIR)/qdf_notifier.o
+endif
+
 ifeq ($(CONFIG_QDF_TEST), y)
 	QDF_OBJS += $(QDF_TEST_OBJ_DIR)/qdf_delayed_work_test.o
 	QDF_OBJS += $(QDF_TEST_OBJ_DIR)/qdf_hashtable_test.o
@@ -666,6 +670,7 @@
 cppflags-$(CONFIG_QDF_TEST) += -DWLAN_TALLOC_TEST
 cppflags-$(CONFIG_QDF_TEST) += -DWLAN_TRACKER_TEST
 cppflags-$(CONFIG_QDF_TEST) += -DWLAN_TYPES_TEST
+cppflags-$(CONFIG_WLAN_HANG_EVENT) += -DWLAN_HANG_EVENT
 
 ############ WBUFF ############
 WBUFF_OS_DIR :=	wbuff