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

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https://hg.mozilla.org/integration/gaia-central/rev/70c0630bb512
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #11431 from KevinGrandon/blob-uris-travis-failure

Bug 806374 - Don't store phone's wallpaper or the dialer ringtone or the notification ringtone as a data: URI in the settings DB

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https://hg.mozilla.org/integration/gaia-central/rev/446bc97f1f99
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 806374 - Don't store phone's wallpaper or the dialer ringtone or the notification ringtone as a data: URI in the settings DB