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

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https://hg.mozilla.org/integration/gaia-central/rev/f65036656dd1
Author: Ben Kelly <bkelly@mozilla.com>
Desc: Merge pull request #12818 from wanderview/homescreen-test-require

Bug 924233: Add missing requires to homescreen tests. r=crdlc

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https://hg.mozilla.org/integration/gaia-central/rev/5e2496ec0b67
Author: Ben Kelly <ben@wanderview.com>
Desc: Bug 924233: Add missing requires to homescreen tests.