Bumping gaia.json for 2 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/862009340c01
Author: AndreiH <andrei.hutusoru@softvision.ro>
Desc: Merge pull request #17325 from AndreiH/bug_984604_2

Bug 984604 - Running without --restart when FTU is open does not work, r=davehunt

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https://hg.mozilla.org/integration/gaia-central/rev/4fca5bb10147
Author: Andrei Hutusoru <andreihutusoru@P5069.(none)>
Desc: Bug 984604 - Running without --restart when FTU is open does not work
Bumping manifests a=b2g-bump