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

========

https://hg.mozilla.org/integration/gaia-central/rev/defc909e21cb
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #16330 from KevinGrandon/bug_952415_search_deduplication

Bug 952415 - [Rocketbar] Duplicate results should not appear

========

https://hg.mozilla.org/integration/gaia-central/rev/ed55d269f906
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 952415 - [Rocketbar] Duplicate results should not appear.
Bumping manifests a=b2g-bump