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

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https://hg.mozilla.org/integration/gaia-central/rev/d07f51062ea9
Author: Cristian Rodriguez <crdlc@tid.es>
Desc: Merge pull request #22022 from crdlc/bug-1041291

Bug 1041291 - [Vertical Homescreen] Load improvements for configurator.j...

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https://hg.mozilla.org/integration/gaia-central/rev/6f758b7e8ced
Author: crdlc <crdlc@tid.es>
Desc: Bug 1041291 - [Vertical Homescreen] Load improvements for configurator.js
Bumping manifests a=b2g-bump