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

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https://hg.mozilla.org/integration/gaia-central/rev/dd66daa68d93
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #26665 from KevinGrandon/bug_1108854_chrome_button_outline

Bug 1108854 - Remove border from focused button r=etienne

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https://hg.mozilla.org/integration/gaia-central/rev/be88512c2d73
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1108854 - Remove border from focused button
Bumping manifests a=b2g-bump