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

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https://hg.mozilla.org/integration/gaia-central/rev/c9bf71d8dfcb
Author: vingtetun <21@vingtetun.org>
Desc: Merge pull request #21266 from vingtetun/bug1033259

Bug 1033259 - Remove the settings permission from the manifest. r=kgrand...

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https://hg.mozilla.org/integration/gaia-central/rev/5bbfd97853ef
Author: Vivien Nicolas <vnicolas@mozilla.com>
Desc: Bug 1033259 - Remove the settings permission from the manifest. r=kgrandon
Bumping manifests a=b2g-bump