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

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https://hg.mozilla.org/integration/gaia-central/rev/4a117a1a34bd
Author: Mihai Cîrlănaru <mihai@cirlanaru.com>
Desc: Merge pull request #9343 from mihai/bug_846595

Bug 846595 - [BB] Align value-selector tick to left for RTL languages… r=@rnowm

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https://hg.mozilla.org/integration/gaia-central/rev/b053ba6fa055
Author: Mihai Cirlanaru <mihai@cirlanaru.com>
Desc: Bug 846595 - [BB] Align value-selector tick to left for RTL languages (i.e. Arabic). r=arnau
Bumping manifests a=b2g-bump