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

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https://hg.mozilla.org/integration/gaia-central/rev/cfa12990d585
Author: Cristian Rodriguez <crdlc@tid.es>
Desc: Merge pull request #18995 from KevinGrandon/bug_1006628_home2_instantiable_pattern

Bug 1006628 - [Home2] Follow instantiable pattern standards

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https://hg.mozilla.org/integration/gaia-central/rev/9bf63aca6ce9
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1006628 - [Home2] Follow instantiable pattern standards r=crdlc
Bumping manifests a=b2g-bump