Sometimes if file operation took too long some devices (not all) would
kill our saving thread after a while which would leave saving operation
incomplete. In this change rather than relying on mercy of vendor we
start a Foreground Service which will effectively stop vendor from
killing the process! Once we're done saving we kill the process
overselves.

(cherry picked from commit cff205c2)

# Conflicts:
#	packaging/android/apk/AndroidManifest.xml