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/09f02d0c8229
Author: Bob Silverberg <bob.silverberg@gmail.com>
Desc: Merge pull request #14124 from AndreiH/bug943816

Bug 943816 - [v1.2] test_export_contacts_to_sdcard intermittent fail

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https://hg.mozilla.org/integration/gaia-1_2/rev/4430087fb2b2
Author: Andrei Hutusoru <andreihutusoru@P5069.(none)>
Desc: Bug 943816 - [v1.2] test_export_contacts_to_sdcard intermittent fail