Bumping gaia.json for 2 gaia-central revision(s)

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https://hg.mozilla.org/integration/gaia-central/rev/ba45890684e4
Author: Dale  Harvey <dale@arandomurl.com>
Desc: Merge pull request #10945 from dominickuo/bug-889739

Bug 889739 - [gallery] Enable the done button after the picked image is. r=daleharvey

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https://hg.mozilla.org/integration/gaia-central/rev/551d17f156a2
Author: Dominic Kuo <dkuo@mozilla.com>
Desc: Bug 889739 - [gallery] Enable the done button after the picked image is loaded