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

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https://hg.mozilla.org/integration/gaia-central/rev/f90d02dd09ba
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #19853 from KevinGrandon/bug_1018698_create_gaia_radio

Bug 1018698 - Create gaia-radio web component

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https://hg.mozilla.org/integration/gaia-central/rev/f69a0a1d4a94
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1018698 - Create gaia-radio web component r=arnau
Bumping manifests a=b2g-bump