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

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https://hg.mozilla.org/integration/gaia-central/rev/fd5e572f2982
Author: steveck-chung <schung@mozilla.com>
Desc: Merge pull request #11826 from steveck-chung/bug-895726

Bug 895726 - [Buri][Monitor][MMS] Unable to save attachement from Camera. r=julienw

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https://hg.mozilla.org/integration/gaia-central/rev/b951f6ca6dc1
Author: Steve Chung <schung@mozilla.com>
Desc: Bug 895726 - [Buri][Monitor][MMS] Unable to save attachement from Camera