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

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https://hg.mozilla.org/integration/gaia-central/rev/2cdb64e8d605
Author: Julien Wajsberg <felash@gmail.com>
Desc: Merge pull request #25623 from julienw/1090966-lazyload-return-promises-2

Bug 1090966 - The LazyLoad library should return a promise r=kgrandon

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https://hg.mozilla.org/integration/gaia-central/rev/2cdbaf1f7626
Author: Julien Wajsberg <felash@gmail.com>
Desc: Bug 1090966 - The LazyLoad library should return a promise r=kgrandon
Bumping manifests a=b2g-bump