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

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https://hg.mozilla.org/integration/gaia-central/rev/ab8b32510fe7
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #25582 from KevinGrandon/bug_1090372_statusbar_color_intermittent_test

Bug 1090372 - [System] Use mock HTTP server for statusbar color test

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https://hg.mozilla.org/integration/gaia-central/rev/eae3f7079e8f
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1090372 - [System] Use mock HTTP server for statusbar color test r=albertopq
Bumping manifests a=b2g-bump