webos-image: Update layer pins for 2013-09-19

meta-webos as of 2013-09-19 15:58:51 -0700

9257c3a webos-image: db8=84
1b3dd9a webos-image: luna-sysservice=13

Open-webOS-DCO-1.0-Signed-off-by: Susan Montooth <susan.montooth@lge.com>