service: use the new load_manifest_bundle helper
service: use the new load_manifest_bundle helper

Signed-off-by: Jan Luebbe <3a82f1ac4ad59607a20f180f1c67ac8ba31ad0d5@pengutronix.de>

jluebbe/rauc,rauc/rauc,ejoerns/rauc,jluebbe/rauc,rauc/rauc,ejoerns/rauc,jluebbe/rauc,rauc/rauc,ejoerns/rauc