* Up until now, vendor build properties were added into /system/build.prop
when property split isn't enabled. However, Google realised that
either /vendor/build.prop or /system/vendor/build.prop can always exist,
and decided to clean up code and always install vendor build props
into $(TARGET_OUT_VENDOR)/build.prop.
* For this reason, the unified devices that used to override build props
such as build fingerprint, will need to override the matching vendor
build props.
Change-Id: Iacdd8eb67543daff5a46b92dbaf17cd094ce462b
