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

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https://hg.mozilla.org/integration/gaia-central/rev/d9d422e52a7a
Author: Jose Antonio Olivera Ortega <josea.olivera@gmail.com>
Desc: Merge pull request #13087 from jaoo/926455

Bug 926455 - Cannot enable data connection when updating from 1.1 to 1.2 via FOTA. r=timdream

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https://hg.mozilla.org/integration/gaia-central/rev/4ddedcff9d2a
Author: Jose Antonio Olivera Ortega <josea.olivera@gmail.com>
Desc: Bug 926455 - Cannot enable data connection when updating from 1.1 to 1.2 via FOTA