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

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https://hg.mozilla.org/integration/gaia-central/rev/22f08f35e21e
Author: Timothy Guan-tin Chien <timdream@gmail.com>
Desc: Merge pull request #13009 from comoyo/close-lockscreen-spans

Bug 929479 - Close 'span' elements in lockscreen passcode pad, r=timdream

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https://hg.mozilla.org/integration/gaia-central/rev/a86162e89beb
Author: Sergi Mansilla <sergi.mansilla@gmail.com>
Desc: Bug 929479 - Close 'span' elements in lockscreen passcode pad