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

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https://hg.mozilla.org/integration/gaia-central/rev/85d9192b0062
Author: Ryan VanderMeulen <rvandermeulen@mozilla.com>
Desc: Revert "Merge pull request #18826 from crdlc/bug-1003752"

This reverts commit 36ba757723f308afa7094044aa44c2fe75c46d37, reversing
changes made to 007e4d0a090a2b93bee5accc64617246092933ab.
Bumping manifests a=b2g-bump