Bumping gaia.json for 3 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/f1780ba84565
Author: Florin Strugariu <florin.strugariu@softvision.ro>
Desc: Merge pull request #26257 from chirarobert/bug_1100994

Bug 1100994 - [v2.2] Fix test_settings_device_info.py failure

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https://hg.mozilla.org/integration/gaia-central/rev/72068b0d3e50
Author: Robert Chira <robertchira@P5075.(none)>
Desc: Bug 1100994 - [v2.2] Fix test_settings_device_info.py failure

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https://hg.mozilla.org/integration/gaia-central/rev/3abadcdbd9ce
Author: Dale Harvey <dale@arandomurl.com>
Desc: Bug 1100305 - Disable intermittent failing browser test. r=me
Bumping manifests a=b2g-bump