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

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https://hg.mozilla.org/integration/gaia-central/rev/f5a0212d32a3
Author: KWierso <kwierso@gmail.com>
Desc: Merge pull request #23524 from qdot/revert-940647

Revert "Bug 940647 - Move bookmark creation to operator variant app"

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https://hg.mozilla.org/integration/gaia-central/rev/0e5a3ea33c79
Author: Kyle Machulis <kyle@nonpolynomial.com>
Desc: Revert "Bug 940647 - Move bookmark creation to operator variant app"

This reverts commit f6f5eededb5c0646f7791d8d4b9d646203d8c89c.
Bumping manifests a=b2g-bump