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

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https://hg.mozilla.org/integration/gaia-central/rev/52a7b8d9b991
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #23387 from KevinGrandon/bug_1016814_duplicate_file_follow_up

Bug 1016814 - Follow-up, remove duplicated component_utils.js file

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https://hg.mozilla.org/integration/gaia-central/rev/9ff95e6951db
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1016814 - Follow-up, remove duplicated component_utils.js file r=kgrandon
Bumping manifests a=b2g-bump