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

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https://hg.mozilla.org/integration/gaia-central/rev/67aa1abb73ff
Author: George <georgeiscoming@gmail.com>
Desc: Merge pull request #11940 from cctuan/883565

Bug 883565 - [Settings] Settings interface for SIM PIN unusable due to UI misplacement

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https://hg.mozilla.org/integration/gaia-central/rev/6d78de0dabce
Author: cctuan <georgeiscoming@gmail.com>
Desc: Bug 883565 - Settings interface for SIM PIN unusable due to UI misplacement, fix: focus on input once panelready