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/ec65b935ae47
Author: Rudy Lu <me@rudy.lu>
Desc: Merge pull request #14304 from RudyLu/keyboard/Bug930358-use_manifestURL_to_indentify_keyboardApp

Bug 930358 - Use manifestURL instead of app origin to identify a
r=gnarf, gary, arthur(cherry picked from commit 846b677b4975639dc61fce28e21d36d724f38160)
a=koi+

Conflicts:
	shared/resources/keyboard_layouts.json