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

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https://hg.mozilla.org/integration/gaia-central/rev/2e205c07e44b
Author: Rudy Lu <me@rudy.lu>
Desc: Merge pull request #17870 from RudyLu/keyboard/Bug959200_master

Bug 959200 - Letters on keyboard sometimes not placed correctly.
r=janjongboom

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https://hg.mozilla.org/integration/gaia-central/rev/f64fa82f917d
Author: Rudy Lu <me@rudy.lu>
Desc: Bug 959200 - Letters on keyboard sometimes not placed correctly.
Bumping manifests a=b2g-bump