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

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https://hg.mozilla.org/integration/gaia-central/rev/c69b9b0b5992
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #21440 from Cwiiis/bug1033444-drag-icon-over-header-at-top

Bug 1033444 - Fix jitter when dragging over header at scroll=0. r=kgrandon

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https://hg.mozilla.org/integration/gaia-central/rev/1a8f66dca323
Author: Chris Lord <chrislord.net@gmail.com>
Desc: Bug 1033444 - Fix jitter when dragging over header at scroll=0. r=kgrandon
Bumping manifests a=b2g-bump