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

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https://hg.mozilla.org/integration/gaia-central/rev/68ff795e16c1
Author: Francisco Borja Salguero Castellano <fbsc@tid.es>
Desc: Merge pull request #10772 from rwldrn/890053

Bug 890053 - [MMS][SMS] Regression. Recipients pull down pushes input behind keyboard

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https://hg.mozilla.org/integration/gaia-central/rev/2b9a69c905ee
Author: Rick Waldron <waldron.rick@gmail.com>
Desc: Bug 890053 - [MMS][SMS] Regression. Recipients pull down pushes input behind keyboard

- broken display: https://www.dropbox.com/sh/pirp25nqtaqcktr/pfFsPQPG6n#f:1.jpg
- fixed display: https://www.dropbox.com/sh/pirp25nqtaqcktr/pfFsPQPG6n#f:2.jpg

https://bugzilla.mozilla.org/show_bug.cgi?id=890053
Signed-off-by: Rick Waldron <waldron.rick@gmail.com>