Bumping gaia.json for 3 gaia-1_2 revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_2/rev/1c4fe113429a
Author: gasolin <gasolin@gmail.com>
Desc: Merge pull request #13722 from gasolin/backout

For bug 934556, backout bug 908601 & bug 911668 in 1.2

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https://hg.mozilla.org/integration/gaia-1_2/rev/0e6dfa8a9034
Author: gasolin <gasolin@gmail.com>
Desc: Revert "Merge pull request #13114 from alivedise/bugzilla/908601_v1.2/default-orientation"

This reverts commit 52703aec82e8e8a89a82a31da6ddb8a9b9680333, reversing
changes made to de70f4d9b7a8dd3ba2565184735094eaa2bd3d18.

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https://hg.mozilla.org/integration/gaia-1_2/rev/fbad6d80db20
Author: gasolin <gasolin@gmail.com>
Desc: Revert "Merge pull request #12016 from gasolin/issue-911668"

This reverts commit dbf61d49df1f4fdd3f9decf25575794b09e77d83.