Bumping gaia.json for 2 gaia-central revision(s)

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https://hg.mozilla.org/integration/gaia-central/rev/fb932dc7c5c4
Author: Jonathan Griffin <jgriffin@mozilla.com>
Desc: Merge pull request #11406 from jonallengriffin/902551

Bug 902551 - Disable save_bookmark_test.js on TBPL for near permaorange,...

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https://hg.mozilla.org/integration/gaia-central/rev/a7a15ae05e97
Author: Jonathan Griffin <jgriffin@mozilla.com>
Desc: Bug 902551 - Disable save_bookmark_test.js on TBPL for near permaorange, a=test-only