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

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https://hg.mozilla.org/integration/gaia-central/rev/1384e6446284
Author: Arthur Chen <crh0716@gmail.com>
Desc: Merge pull request #11990 from crh0716/891734

Bug 891734 - Add a test app for OTA status changes r=me

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https://hg.mozilla.org/integration/gaia-central/rev/035e08a1f86e
Author: Arthur Chen <crh0716@gmail.com>
Desc: Bug 891734 - Add a test app for OTA status changes