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

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https://hg.mozilla.org/integration/gaia-central/rev/9b25447bb7d6
Author: russnicoletti <rnicoletti@mozilla.com>
Desc: Merge pull request #20636 from russnicoletti/bug-1013464

Bug 1013464 -- intermittent dom.player is null during video_test.js unit testing r=johu

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https://hg.mozilla.org/integration/gaia-central/rev/ae04badd67f6
Author: Russ Nicoletti <rnicoletti@mozilla.com>
Desc: Bug 1013464 -- intermittent dom.player is null
Bumping manifests a=b2g-bump