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

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https://hg.mozilla.org/integration/gaia-central/rev/3056c3eb4668
Author: Jan Jongboom <janjongboom@gmail.com>
Desc: Merge pull request #17196 from comoyo/bug982269_master

Bug 982269 - Fix keyboard reflows. r=RudyL

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https://hg.mozilla.org/integration/gaia-central/rev/5bf448e7ede4
Author: Jan Jongboom <janjongboom@gmail.com>
Desc: Bug 982269 - Fix keyboard reflows
Bumping manifests a=b2g-bump