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

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https://hg.mozilla.org/integration/gaia-central/rev/f3b867d2339d
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #24771 from KevinGrandon/bug_1077579_shb_fullscreen_tests

Bug 1077579 - [SoftwareHome] Add integration tests for fullscreen apps

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https://hg.mozilla.org/integration/gaia-central/rev/033cc212d247
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1077579 - [SoftwareHome] Add integration tests for fullscreen apps r=eli
Bumping manifests a=b2g-bump