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

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https://hg.mozilla.org/integration/gaia-central/rev/d93a319ad5e5
Author: Gregor Wagner <anygregor@gmail.com>
Desc: Merge pull request #24340 from gregorwagner/1071529

Bug 1071529 - Remove deprecated-hwvideo permissions. r=djf

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https://hg.mozilla.org/integration/gaia-central/rev/70304513f177
Author: Gregor Wagner <anygregor@gmail.com>
Desc: Bug 1071529 - Remove deprecated-hwvideo permissions. r=djf
Bumping manifests a=b2g-bump