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

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https://hg.mozilla.org/integration/gaia-central/rev/b719122ab4ab
Author: David Flanagan <dflanagan@mozilla.com>
Desc: Merge pull request #11790 from mikeaich/bug831446

Bug 831446 - remove delete button from secure lockscreen camera, r=djf

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https://hg.mozilla.org/integration/gaia-central/rev/65d657802336
Author: Mike Habicher <mikeh@mozilla.com>
Desc: Bug 831446 - remove delete button from secure lockscreen camera