Boot and recovery are already regenerated in sign_target_files_apks,
so the scripts galaxys2_img_from_target_files and
galaxys2_ota_from_target_files have no effect.
This fork of sign_target_files_apks makes sure that the standalone
recovery is rebuilt with the new ramdisk and that boot image from $OUT
is used untouched.
Signed-off-by: Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de>