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

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https://hg.mozilla.org/integration/gaia-central/rev/d368f8722a34
Author: Justin D'Arcangelo <justindarc@gmail.com>
Desc: Merge pull request #21130 from justindarc/bug1031012

Bug 1031012 - [B2G][Camera]Self-timer cannot be canceled

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https://hg.mozilla.org/integration/gaia-central/rev/cc02ab850b74
Author: Justin D'Arcangelo <justindarc@gmail.com>
Desc: Bug 1031012 - [B2G][Camera]Self-timer cannot be canceled
Bumping manifests a=b2g-bump