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

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https://hg.mozilla.org/integration/gaia-central/rev/00d43174b0e8
Author: Diego Marcos <diego.marcos@gmail.com>
Desc: Merge pull request #16644 from dmarcos/bug975453

Bug 975453 - [B2G][Camera]Unable to stop recording video when quickly sw...

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https://hg.mozilla.org/integration/gaia-central/rev/85f35499e33d
Author: Diego Marcos <diego.marcos@gmail.com>
Desc: Bug 975453 - [B2G][Camera]Unable to stop recording video when quickly switching to camera mode after pressing record
Bumping manifests a=b2g-bump