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

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https://hg.mozilla.org/integration/gaia-central/rev/c35464e66564
Author: Bob Silverberg <bob.silverberg@gmail.com>
Desc: Merge pull request #14223 from zacc/bug_944745

Bug 944745 - Update lockscreen test HTML after Bug 919410 changes.

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https://hg.mozilla.org/integration/gaia-central/rev/f6db4f5ec8a5
Author: Zac Campbell <zcampbell@mozilla.com>
Desc: Bug 944745 - Update lockscreen test HTML after Bug 919410 changes.