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

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https://hg.mozilla.org/integration/gaia-central/rev/3dfadd98dcbb
Author: Justin D'Arcangelo <justindarc@gmail.com>
Desc: Merge pull request #20244 from justindarc/bug1022809

Bug 1022809 - [Camera] Remove lazy_loader.js script tag

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https://hg.mozilla.org/integration/gaia-central/rev/bd8bafd5c798
Author: Justin D'Arcangelo <justindarc@gmail.com>
Desc: Bug 1022809 - [Camera] Remove lazy_loader.js script tag
Bumping manifests a=b2g-bump