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

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https://hg.mozilla.org/integration/gaia-central/rev/9a48d68efd0e
Author: Pavel Ivanov <pivanov@mozilla.com>
Desc: Merge pull request #14782 from pivanov/bug-943701

Bug 943701 - [Settings] the “Do Not Track” panel is broken

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https://hg.mozilla.org/integration/gaia-central/rev/06b0b0c6fab5
Author: Pavel Ivanov <pivanov@mozilla.com>
Desc: Bug 943701 - [Settings] the “Do Not Track” panel is broken