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

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https://hg.mozilla.org/integration/gaia-central/rev/ae8d09b96113
Author: Greg Weng <snowmantw@gmail.com>
Desc: Merge pull request #16498 from snowmantw/issue972729

Bug 972729 - [NFC] landscape NFC shrinking UI has some issue

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https://hg.mozilla.org/integration/gaia-central/rev/82335f78fe55
Author: Greg Weng <snowmantw@gmail.com>
Desc: Bug 972729 - [NFC] landscape NFC shrinking UI has some issue
Bumping manifests a=b2g-bump