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

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https://hg.mozilla.org/integration/gaia-central/rev/fde1b2fb340a
Author: Greg Weng <snowmantw@gmail.com>
Desc: Merge pull request #24957 from snowmantw/bug1079706

Bug 1079706 - [LockScreen] Encapsulate passcode pad as a standalone comp...

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https://hg.mozilla.org/integration/gaia-central/rev/0d0d624969bb
Author: Greg Weng <snowmantw@gmail.com>
Desc: Bug 1079706 - [LockScreen] Encapsulate passcode pad as a standalone component (with LockScreenInputWindow)
Bumping manifests a=b2g-bump