Bumping gaia.json for 2 gaia-central revision(s)

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https://hg.mozilla.org/integration/gaia-central/rev/7a4b216668ae
Author: Michael Henretty <michael.henretty@gmail.com>
Desc: Merge pull request #10331 from KevinGrandon/bug_881743_clock_lazy_dom

Bug 881743 - Lazy load alarm edit dom

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https://hg.mozilla.org/integration/gaia-central/rev/10753a5f5475
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 881743 - Lazy load alarm edit dom