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

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https://hg.mozilla.org/integration/gaia-central/rev/b8eec55b4929
Author: nigelb <nigelbabu@gmail.com>
Desc: Revert "Merge pull request #24127 from ddrmanxbxfr/bug_1062829"

This reverts commit a416d1e2c1f82631de19ba476cb110304d0105c4, reversing
changes made to 3563ddca35a52e7a533dcfc7996e74b78c6e36c8.
Bumping manifests a=b2g-bump