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

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https://hg.mozilla.org/integration/gaia-central/rev/26b5804a562b
Author: vingtetun <21@vingtetun.org>
Desc: Merge pull request #22365 from vingtetun/bigger-statusbar-landing2

Bug 1045656 - Change the height of the statusbar from 2.4rem to 3rem. r=...

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https://hg.mozilla.org/integration/gaia-central/rev/1128a027cac9
Author: Vivien Nicolas <vnicolas@mozilla.com>
Desc: Bug 1045656 - Change the height of the statusbar from 2.4rem to 3rem. r=kgrandon
Bumping manifests a=b2g-bump