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

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https://hg.mozilla.org/integration/gaia-central/rev/0a6632daf1c8
Author: GaryChen(pychen) <mmm198219@gmail.com>
Desc: Merge pull request #13575 from mpizza/Bug_936350_addOOMhandler

Bug 936350 - The keyboard management does not really handle OOM. r=timdream.

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https://hg.mozilla.org/integration/gaia-central/rev/b243eb3847b7
Author: mpizza <mmm198219@gmail.com>
Desc: Bug 936350 - The keyboard management does not really handle OOM