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

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https://hg.mozilla.org/integration/gaia-central/rev/f30534bf7fb7
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #16769 from KevinGrandon/bug_977574_search_test_coverage

Bug 977574 - [Search] Fix unit test coverage

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https://hg.mozilla.org/integration/gaia-central/rev/b212a5abc6c9
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 977574 - [Search] Fix unit test coverage r=kgrandon
Bumping manifests a=b2g-bump