Bumping gaia.json for 2 gaia revision(s) a=gaia-bump

========

https://hg.mozilla.org/integration/gaia-central/rev/687b33c92826
Author: Justin D'Arcangelo <justindarc@gmail.com>
Desc: Merge pull request #19511 from justindarc/bug1008349

Bug 1008349 - [B2G][Camera][Zoom][Open C]zoom level in preview is higher...

========

https://hg.mozilla.org/integration/gaia-central/rev/e9a9b0d5f74d
Author: Justin D'Arcangelo <justindarc@gmail.com>
Desc: Bug 1008349 - [B2G][Camera][Zoom][Open C]zoom level in preview is higher than the zoom level of the picture taken.
Bumping manifests a=b2g-bump