Bumping gaia.json for 2 gaia-1_2 revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_2/rev/9a4d3826abbd
Author: Florin Strugariu <bebef_1987@yahoo.com>
Desc: Merge pull request #14464 from AndreiH/bug938061_v1.2

bug 938061 - final  - r=zac

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https://hg.mozilla.org/integration/gaia-1_2/rev/0c5405f5c67f
Author: Andrei Hutusoru <andreihutusoru@P5069.(none)>
Desc: bug 938061 - final  - r=zac

Conflicts:
	tests/python/gaia-ui-tests/gaiatest/tests/functional/system/manifest.ini