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/90b0bc477ad0
Author: AndreiH <andrei.hutusoru@gmail.com>
Desc: Merge pull request #14406 from bebef1987/v1.2

Bug 943881 - Add camera=true tag to test_sms_with_attachments.py

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https://hg.mozilla.org/integration/gaia-1_2/rev/174f934e92c5
Author: Bebe <bebe@mozilla.ro>
Desc: Bug 943881 - Add camera=true tag to test_sms_with_attachments.py