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

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https://hg.mozilla.org/integration/gaia-central/rev/f19b3cfb1465
Author: Yuren Ju <yurenju@gmail.com>
Desc: Merge pull request #11830 from yurenju/909906

Bug 909906 - [B2G][Buri][1.2][Facebook] Importing contacts from facebook... r=timdream

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https://hg.mozilla.org/integration/gaia-central/rev/db975ebea3b6
Author: Yuren Ju <yurenju@gmail.com>
Desc: Bug 909906 - [B2G][Buri][1.2][Facebook] Importing contacts from facebook displays Error message:'Invalid App ID: 123456'