webos-image: Update layer pins for 2014-04-23

meta-webos as of 2014-04-23 09:41:45 -0700

a47cf73 webos-image: db8=137

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

Change-Id: I7edf79ca71fb6d3ff9c39a10ddfb659935e13744
Reviewed-on: https://g2g.palm.com/5392
Reviewed-by: DCO Verification
Build: Susan Montooth <susan.montooth@lge.com>
Reviewed-by: Build Verification
Reviewed-by: Susan Montooth <susan.montooth@lge.com>
Tested-by: Susan Montooth <susan.montooth@lge.com>