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

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https://hg.mozilla.org/integration/gaia-central/rev/ceaf56cd2c2f
Author: Wilson Page <wilsonpage@me.com>
Desc: Merge pull request #22528 from wilsonpage/1048905

Bug 1048905 - Copy icon-font into system/fonts/hidden/ on build

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https://hg.mozilla.org/integration/gaia-central/rev/10ff7e858932
Author: Wilson Page <wilsonpage@me.com>
Desc: Bug 1048905 - Copy icon-font into system/fonts/hidden/ on build
Bumping manifests a=b2g-bump