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

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https://hg.mozilla.org/integration/gaia-central/rev/215f677d5bd1
Author: Francisco Borja Salguero Castellano <fbsc@tid.es>
Desc: Merge pull request #10886 from arcturus/bug-885981

Bug 885981 - [SMS] The device does not recognize that the SMS received from a saved contact

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https://hg.mozilla.org/integration/gaia-central/rev/7f91c5f7febc
Author: Francisco Jordano <arcturus@ardeenelinfierno.com>
Desc: Bug 885981 - [SMS] The device does not recognize that the SMS received from a saved contact