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

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https://hg.mozilla.org/integration/gaia-central/rev/d52716b55323
Author: pacorampas <b.frv@tid.es>
Desc: Merge pull request #22393 from pacorampas/822645

Bug 822645 - [settings] Possible CSP problem r=arnau

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https://hg.mozilla.org/integration/gaia-central/rev/e89cab5b6342
Author: Paco Rampas <pacorampas@gmail.com>
Desc: Bug 822645 - [settings] Possible CSP problem
Bumping manifests a=b2g-bump