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

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https://hg.mozilla.org/integration/gaia-central/rev/22d72f1cfb07
Author: Rudy Lu <left.lu@gmail.com>
Desc: Merge pull request #11901 from luke-chang/911903_keyboard_not_load_engine

Bug 911903 - [Keyboard] Keyboard app doesn't load the layout engine. r=rudylu

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https://hg.mozilla.org/integration/gaia-central/rev/ef42d30bc26d
Author: Luke Chang <lchang@mozilla.com>
Desc: Bug 911903 - [Keyboard] Keyboard app doesn't load the layout engine