asoc: add ext-display module dependencies

Enable CONFIG_MSM_EXT_DISPLAY and link external display module
in audio to enable displayport audio.

Change-Id: I43f8821ec7612422b6a09c9631b038ceb17b1e44

Android.mk

@@ -36,6 +36,7 @@ KBUILD_OPTIONS := AUDIO_ROOT=$(AUDIO_BLD_DIR)
 KBUILD_OPTIONS += MODNAME=audio_dlkm
 KBUILD_OPTIONS += BOARD_PLATFORM=$(TARGET_BOARD_PLATFORM)
 KBUILD_OPTIONS += $(AUDIO_SELECT)
+KBUILD_OPTIONS += KBUILD_EXTRA_SYMBOLS=$(PWD)/$(call intermediates-dir-for,DLKM,msm-ext-disp-module-symvers)/Module.symvers
 
 AUDIO_SRC_FILES := \
 	$(wildcard $(LOCAL_PATH)/*) \
@@ -319,6 +320,8 @@ LOCAL_MODULE_KBUILD_NAME  := asoc/codecs/hdmi_dlkm.ko
 LOCAL_MODULE_TAGS         := optional
 LOCAL_MODULE_DEBUG_ENABLE := true
 LOCAL_MODULE_PATH         := $(KERNEL_MODULES_OUT)
+LOCAL_REQUIRED_MODULES    := msm-ext-disp-module-symvers
+LOCAL_ADDITIONAL_DEPENDENCIES := $(call intermediates-dir-for,DLKM,msm-ext-disp-module-symvers)/Module.symvers
 include $(DLKM_DIR)/Build_external_kernelmodule.mk
 ###########################################################
 

config/kalamaautoconf.h

@@ -40,3 +40,4 @@
 #define CONFIG_SND_SWR_HAPTICS 1
 #define CONFIG_SND_SOC_MSM_STUB 1
 #define CONFIG_SND_SOC_MSM_HDMI_CODEC_RX 1
+#define CONFIG_MSM_EXT_DISPLAY 1