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

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https://hg.mozilla.org/integration/gaia-central/rev/630d27e5cff7
Author: Yuren Ju <yurenju@gmail.com>
Desc: Merge pull request #15539 from yurenju/align

Bug 957497 - Enable alignStoredFiles() r=@timdream

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https://hg.mozilla.org/integration/gaia-central/rev/dbf49f1f14b9
Author: Yuren Ju <yurenju@gmail.com>
Desc: Bug 957497 - Enable alignStoredFiles()
Bumping manifests a=b2g-bump