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

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https://hg.mozilla.org/integration/gaia-central/rev/cc028b0f4b4e
Author: Florin Strugariu <bebef_1987@yahoo.com>
Desc: Merge pull request #21385 from viorelaioia/bug_1021027

Bug 1021027 - [Flame] Update locator in gallery - fullscreen image page

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https://hg.mozilla.org/integration/gaia-central/rev/63d1e27cee00
Author: Viorela Ioia <viorelaioia@gmail.com>
Desc: Bug 1021027 - [Flame] Update locator in gallery - fullscreen image page
Bumping manifests a=b2g-bump