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

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https://hg.mozilla.org/integration/gaia-central/rev/7dde13e3c074
Author: Greg Weng <snowmantw@gmail.com>
Desc: Merge pull request #25561 from snowmantw/bug1090018

Bug 1090018 - Unexpected space shows on the bottom of keyboard when pass...

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https://hg.mozilla.org/integration/gaia-central/rev/ea749eb1d261
Author: Greg Weng <snowmantw@gmail.com>
Desc: Bug 1090018 - Unexpected space shows on the bottom of keyboard when passcode and software home button are enabled
Bumping manifests a=b2g-bump