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

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https://hg.mozilla.org/integration/gaia-2_0/rev/129a3e5d3ae4
Author: Greg Weng <snowmantw@gmail.com>
Desc: Merge pull request #21663 from snowmantw/issue1033925-v2.0

Bug 1033925 - [NFC] Home button would stuck when swipe shrinking UI in ...

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https://hg.mozilla.org/integration/gaia-2_0/rev/be58eff8d6ed
Author: Siddartha Pothapragada <Siddartha.Pothapragada@telekom.com>
Desc: Bug 1033925 - [NFC] Home button would stuck when swipe shrinking UI in
the middle and then leave two phones

This was fixed in Bug 1020005, so I just apply the patch to v2.0
Bumping manifests a=b2g-bump