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

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https://hg.mozilla.org/integration/gaia-2_1/rev/7232ff47a2e5
Author: Greg Weng <snowmantw@gmail.com>
Desc: Merge pull request #24261 from snowmantw/issue1064630-v2.1

Bug 1064630 - [Lockscreen] Locking device after entering a passcode leav...

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https://hg.mozilla.org/integration/gaia-2_1/rev/231587028841
Author: Greg Weng <snowmantw@gmail.com>
Desc: Bug 1064630 - [Lockscreen] Locking device after entering a passcode leaves the user in an unrecoverable state
Bumping manifests a=b2g-bump