sanders: Use build variables to build device matrices.

Move away from building device manifest through PRODUCT_COPY_FILES.
Use the build variables - DEVICE_MANIFEST_FILE and DEVICE_MATRIX_FILE
to build device manifest and device compatibility files repectively.

Change-Id: Ieb3e410118ee9fe00c6b03e32a983e584960d8dc

BoardConfig.mk

@@ -167,6 +167,10 @@ TARGET_PROVIDES_KEYMASTER := true
 # Lights
 TARGET_PROVIDES_LIBLIGHT := true
 
+# Manifest
+DEVICE_MANIFEST_FILE := $(DEVICE_PATH)/configs/manifest.xml
+DEVICE_MATRIX_FILE   := $(DEVICE_PATH)/configs/compatibility_matrix.xml
+
 # Media
 # TARGET_USES_MEDIA_EXTENSIONS := true
 

device.mk

@@ -191,11 +191,6 @@ PRODUCT_PACKAGES += \
     libloc_api-rpc-qc \
     libshims_get_process_name
 
-# HIDL
-PRODUCT_COPY_FILES += \
-    $(LOCAL_PATH)/manifest.xml:system/vendor/manifest.xml \
-    $(LOCAL_PATH)/compatibility_matrix.xml:system/vendor/compatibility_matrix.xml
-
 # IMS
 PRODUCT_PACKAGES += \
     libshim_ims