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

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https://hg.mozilla.org/integration/gaia-central/rev/fd9106ef6db4
Author: Ryan VanderMeulen <rvandermeulen@mozilla.com>
Desc: Revert "Merge pull request #22255 from JinghuaXing/bug947198_master"

This reverts commit 05176f64f15efd92c654d0eed801991ab2199bf8, reversing
changes made to efb6eb0a6387186c24f0fe469e61cdbe3670d37c.
Bumping manifests a=b2g-bump