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

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https://hg.mozilla.org/integration/gaia-central/rev/f2e1fa71667b
Author: Michael Henretty <michael.henretty@gmail.com>
Desc: Merge pull request #10373 from KevinGrandon/bug_881740_clock_perf

Bug 881740 - Lazy load clock resources

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https://hg.mozilla.org/integration/gaia-central/rev/ea68b25ed4d9
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 881740 - Lazy load clock resources