Move recovery_update_prop to system_internal_prop

Fixes:
SELinux: The following public types were found added to the policy
without an entry into the compatibility mapping file(s) found in
private/compat/V.v/V.v[.ignore].cil, where V.v is the latest API level.
recovery_update_prop

Change-Id: I2ce2af195ca333828cd9782e49da7e622605fb92