Bumping gaia.json for 1 gaia-1_2 revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_2/rev/ee6ada0cbab2
Author: Timothy Guan-tin Chien <timdream@gmail.com>
Desc: Revert "Revert "Merge pull request #13115 from RudyLu/keyboard/Bug928281-keyboard_OOP""

This reverts commit 9bdd41c3dea84905ad93d02dfa36f92757ea1ada.