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

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https://hg.mozilla.org/integration/gaia-central/rev/8210265f51d5
Author: gasolin <gasolin@gmail.com>
Desc: Merge pull request #13282 from MBRSL/bug-931729-asyncAlert

Bug 931729 - [HW test] async dual alert cause settimeout invalid, r=gasolin

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https://hg.mozilla.org/integration/gaia-central/rev/01a099ebdf4b
Author: Tom Jao <tjao@mozilla.com>
Desc: Bug 931729 - [HW test] async dual alert cause settimeout invalid