Gallery: Fix filmstrip with no camera tile

Change-Id: I85f1a6ee2c9587a2071234a1754e03886c351f09
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>
Merge "Gallery: Fix filmstrip with no camera tile" into cm-10.2
Merge remote-tracking branch 'upstream/cm-10.2' into dark-jelly-cm-10.2