Bumping gaia.json for 2 gaia-central revision(s)

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https://hg.mozilla.org/integration/gaia-central/rev/f7fe122995e7
Author: Francisco Jordano <arcturus@ardeenelinfierno.com>
Desc: Merge pull request #11420 from borjasalguero/paris_ftu_screen

Bug 902800 - [FTU] Flickering with start tour screen after About Firefox OS screen r=arcturus

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https://hg.mozilla.org/integration/gaia-central/rev/e0b402a314ea
Author: borjasalguero <fbsc@tid.es>
Desc: Bug 902800 - [FTU] Flickering with start tour screen after About Firefox OS screen r=fcampo