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

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https://hg.mozilla.org/integration/gaia-central/rev/212476302b9f
Author: viorelaioia <viorela.ioia@softvision.ro>
Desc: Merge pull request #24545 from chirarobert/disable_on_tbpl

Bug 1074654 - [v2.2] Disable test_ftu_with_tour.py on desktop

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https://hg.mozilla.org/integration/gaia-central/rev/52c288a59710
Author: Robert Chira <robertchira@P5075.(none)>
Desc: Bug 1074654 - [v2.2] Disable test_ftu_with_tour.py on desktop
Bumping manifests a=b2g-bump