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

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https://hg.mozilla.org/integration/gaia-central/rev/dd035f212994
Author: Sherman Chen <shamenchens@users.noreply.github.com>
Desc: Merge pull request #21983 from shamenchens/Bug942718-FTUAboutFirefoxOS

Bug 942718 - FTU About Firefox page should not be moved, r=fcampo

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https://hg.mozilla.org/integration/gaia-central/rev/0d055daec87f
Author: Sherman Chen <shamen.chens@gmail.com>
Desc: Bug 942718 - FTU About Firefox page should not be moved
Bumping manifests a=b2g-bump