Bumping gaia.json for 3 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/9572e7c936b8
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #24706 from etiennesegonzac/bug-1045729-edge-gesture-integration-back

Bug 1045729 - Bringing the edge gestures integration test back. r=kgrandon

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https://hg.mozilla.org/integration/gaia-central/rev/0a252e2f26e4
Author: Etienne Segonzac <etienne@segonzac.info>
Desc: Bug 1045729 - Bringing the edge gestures integration test back.

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https://hg.mozilla.org/integration/gaia-central/rev/0f3868d53429
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Revert "Bug 1074033 - Edge gestures overlapping"

This reverts commit eee9520cfa8bc579b35fa6e848f3fc0c37167b08.
Bumping manifests a=b2g-bump