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

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https://hg.mozilla.org/integration/gaia-central/rev/0de916089869
Author: Min-Zhong "John" Lu <mnjul@users.noreply.github.com>
Desc: Merge pull request #20420 from mnjul/bug_1023642_lockscreen_classlist_undefined

Bug 1023642 - Javascript Error: window.lockScreen.classList is undefined [r=gweng]

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https://hg.mozilla.org/integration/gaia-central/rev/b2241d308cc5
Author: John Lu [:mnjul] <jlu@mozilla.com>
Desc: Bug 1023642 - Javascript Error: window.lockScreen.classList is undefined
Bumping manifests a=b2g-bump