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

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https://hg.mozilla.org/integration/gaia-central/rev/d1da19b92a06
Author: Julien Wajsberg <felash@gmail.com>
Desc: Merge pull request #21402 from pivanov/bug-1034271

Bug 1034271 - [SMS] Background graphic is out of date r=julien

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https://hg.mozilla.org/integration/gaia-central/rev/fe37589bf9f9
Author: Pavel Ivanov <pivanov@mozilla.com>
Desc: Bug 1034271 - [SMS] Background graphic is out of date
Bumping manifests a=b2g-bump