Bumping gaia.json for 3 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/3aae224e8a4e
Author: Yuren Ju <yurenju@gmail.com>
Desc: Merge pull request #21162 from yurenju/callscreen

Bug 1000049 - APP=callscreen make install-gaia should give some informat... r=@cctuan

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https://hg.mozilla.org/integration/gaia-central/rev/4a15f0b801a1
Author: Yuren Ju <yurenju@gmail.com>
Desc: Bug 1000049 - APP=callscreen make install-gaia should restart b2g to pick up the changes

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https://hg.mozilla.org/integration/gaia-central/rev/0c6faf923b9e
Author: Timothy Guan-tin Chien <timdream@gmail.com>
Desc: Revert "Merge pull request #22068 from mancas/bug929311"

This reverts commit c0a8cebe31c49a90c443226710aef36c1e62bdc2, reversing
changes made to 89b3cd51330ae0ae848057a8d453c252e147e61d.
Bumping manifests a=b2g-bump