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

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https://hg.mozilla.org/integration/gaia-central/rev/f3575a1613e6
Author: Eitan Isaacson <eitan@monotonous.org>
Desc: Merge pull request #17830 from eeejay/bug-990235

Bug 990235 - [Clock] Localize alarm panel. r=mcav

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https://hg.mozilla.org/integration/gaia-central/rev/fe17bf6809aa
Author: Eitan Isaacson <eitan@monotonous.org>
Desc: Bug 990235 - [Clock] Localize alarm panel.
Bumping manifests a=b2g-bump