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/09c76c0168f6
Author: John Hu <johu@mozilla.com>
Desc: Merge pull request #13730 from huchengtw-moz/gallery/Bug_935072-v1.2

Merge pull request #13653 from huchengtw-moz/gallery/Bug_935072_crop_han...

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https://hg.mozilla.org/integration/gaia-1_2/rev/61ff19a69bc7
Author: John Hu <johu@mozilla.com>
Desc: Merge pull request #13653 from huchengtw-moz/gallery/Bug_935072_crop_handle_hard_to_grab

Bug 935072 - [B2G][Gallery] Crop handles are difficult to grab and move, r=djf(cherry picked from commit 8d4f461310c53478a0cdc44ecb8ad10fdb647d66)