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

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https://hg.mozilla.org/integration/gaia-central/rev/08f7b6e5415c
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #15607 from KevinGrandon/bug_961351_to_master

Bug 961351 - Clear button not visible when focusing on rocketbar

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https://hg.mozilla.org/integration/gaia-central/rev/5ab16682ee8f
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 961351 - Clear button not visible when focusing on rocketbar r=me
Bumping manifests a=b2g-bump