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

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https://hg.mozilla.org/integration/gaia-central/rev/1771b99267b6
Author: Francisco Borja Salguero Castellano <fbsc@tid.es>
Desc: Merge pull request #10584 from rwldrn/885274

Bug 885274 - [SMS/MMS] Option menu. Only execute menu operations when target has an associated action

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https://hg.mozilla.org/integration/gaia-central/rev/f560e202627e
Author: Rick Waldron <waldron.rick@gmail.com>
Desc: Bug 885274 - [SMS/MMS] Option menu. Only execute menu operations when target has an associated action

https://bugzilla.mozilla.org/show_bug.cgi?id=885274
Signed-off-by: Rick Waldron <waldron.rick@gmail.com>