webos-image: libpbnjson=9

37e0609 fix compile warning

Open-webOS-DCO-1.0-Signed-off-by: Eric Blade <eric.blade@palm.com>

Change-Id: Ie6ab21c72594b7b51f65901d460810368c03bdc8
Reviewed-on: https://g2g.palm.com/1978
Reviewed-by: Susan Montooth <susan.montooth@lge.com>
Tested-by: Susan Montooth <susan.montooth@lge.com>