halium: install an empty file to /system/etc/prop.halium

It can be used as bind mount target to override property values
set in any other property files.

Author: NotKit

device.mk

@@ -24,6 +24,10 @@ PRODUCT_PACKAGES += \
     vndk-detect \
     on-post-data.sh
 
+# bind mount target for property overrides
+PRODUCT_PACKAGES += \
+    prop.halium
+
 # Keymaster
 PRODUCT_PACKAGES += \
     android.hardware.keymaster@3.0-impl \

rootdir/Android.mk

@@ -20,6 +20,14 @@ LOCAL_SRC_FILES    := etc/init.disabled.rc
 LOCAL_MODULE_PATH  := $(TARGET_OUT_ETC)/init
 include $(BUILD_PREBUILT)
 
+include $(CLEAR_VARS)
+LOCAL_MODULE       := prop.halium
+LOCAL_MODULE_TAGS  := optional
+LOCAL_MODULE_CLASS := ETC
+LOCAL_SRC_FILES    := etc/prop.halium
+LOCAL_MODULE_PATH  := $(TARGET_OUT_ETC)
+include $(BUILD_PREBUILT)
+
 include $(CLEAR_VARS)
 LOCAL_MODULE       := vndk-detect
 LOCAL_MODULE_TAGS  := optional

rootdir/etc/prop.halium

@@ -0,0 +1,2 @@
+# This is an empty property file that can be used as bind mount target to
+# override property values set in any other property files.