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

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https://hg.mozilla.org/integration/gaia-central/rev/320adc0150b1
Author: punamdahiya <punamdahiya@yahoo.com>
Desc: Merge pull request #26342 from punamdahiya/Bug1100528

Bug1100528-[Gallery[RTL]-Mirror slider thumb to progress left while playing video in gallery r=djf

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https://hg.mozilla.org/integration/gaia-central/rev/94264588cd0d
Author: Punam Dahiya <punamdahiya@yahoo.com>
Desc: Bug1100528-[Gallery[RTL]-Mirror slider thumb to progress left while playing video in gallery r=djf
Bumping manifests a=b2g-bump