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

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https://hg.mozilla.org/integration/gaia-central/rev/3112418e17e7
Author: Francisco Jordano <arcturus@ardeenelinfierno.com>
Desc: Merge pull request #21955 from arcturus/bug-1038414

Bug 1038414 - [B2G][Contacts][Camera][273MB Flame] Camera app OOMs when adding picture to contact r=jmcf

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https://hg.mozilla.org/integration/gaia-central/rev/f0ebb320d202
Author: Francisco Jordano <arcturus@ardeenelinfierno.com>
Desc: Bug 1038414 - [B2G][Contacts][Camera][273MB Flame] Camera app OOMs when adding picture to contact
Bumping manifests a=b2g-bump