config: enable auto config overlay as value added

Enable automotive config overlay as value added
feature to align with audio policy configuration.

This is to avoid boot up issue when bus device is
not available in AOSP policy when car dynamic
routing is enabled in the overlay.

Change-Id: I4df5c892f4c698b04c00cb1f56e537dea8fdc644
diff --git a/configs/msmnile_au/msmnile_au.mk b/configs/msmnile_au/msmnile_au.mk
index 7dd0a3e..41d1007 100644
--- a/configs/msmnile_au/msmnile_au.mk
+++ b/configs/msmnile_au/msmnile_au.mk
@@ -80,7 +80,9 @@
 endif
 
 #Automotive audio specific device overlays
+ifneq ($(TARGET_USES_AOSP_FOR_AUDIO), true)
 DEVICE_PACKAGE_OVERLAYS += hardware/qcom/audio/configs/msmnile_au/overlay
+endif
 
 PRODUCT_COPY_FILES += \
     vendor/qcom/opensource/audio-hal/primary-hal/configs/msmnile_au/audio_output_policy.conf:$(TARGET_COPY_OUT_VENDOR)/etc/audio_output_policy.conf \
diff --git a/configs/msmsteppe_au/msmsteppe_au.mk b/configs/msmsteppe_au/msmsteppe_au.mk
index 858077c..9c50a09 100644
--- a/configs/msmsteppe_au/msmsteppe_au.mk
+++ b/configs/msmsteppe_au/msmsteppe_au.mk
@@ -75,7 +75,9 @@
 endif
 
 #Automotive audio specific device overlays
+ifneq ($(TARGET_USES_AOSP_FOR_AUDIO), true)
 DEVICE_PACKAGE_OVERLAYS += hardware/qcom/audio/configs/msmsteppe_au/overlay
+endif
 
 PRODUCT_COPY_FILES += \
     vendor/qcom/opensource/audio-hal/primary-hal/configs/msmsteppe_au/audio_output_policy.conf:$(TARGET_COPY_OUT_VENDOR)/etc/audio_output_policy.conf \