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

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https://hg.mozilla.org/integration/gaia-central/rev/49ed800397c7
Author: Alive.Kuo <alegnadise@gmail.com>
Desc: Merge pull request #11338 from alivedise/bugzilla/898385_master/remove-over-usage-of-ori-sensor

Bug 898385 - Reduce orientation sensor usage. r=timdream

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https://hg.mozilla.org/integration/gaia-central/rev/e388b7ae12c9
Author: Alive Kuo <alegnadise@gmail.com>
Desc: Bug 898385 - Reduce orientation sensor usage.