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

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https://hg.mozilla.org/integration/gaia-central/rev/34a411a62615
Author: Rudy Lu <me@rudy.lu>
Desc: Merge pull request #16028 from RudyLu/keyboard/Bug968729-add_unit_test

Bug 968729 - Add unit test for Bug 963377.
r=timdream

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https://hg.mozilla.org/integration/gaia-central/rev/314ae19a30da
Author: Rudy Lu <me@rudy.lu>
Desc: Bug 968729 - Add unit test for Bug 963377
Bumping manifests a=b2g-bump