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

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https://hg.mozilla.org/integration/gaia-central/rev/186e65f85c07
Author: albertopq <albert.pastor@gmail.com>
Desc: Merge pull request #26927 from albertopq/1113482-ftu-statusbar

Bug 1113482 - Statusbar not visible on FTU r=alive

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https://hg.mozilla.org/integration/gaia-central/rev/5d21d8abac72
Author: albertopq <albert.pastor@gmail.com>
Desc: Bug 1113482 - Statusbar not visible on FTU
Bumping manifests a=b2g-bump