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

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https://hg.mozilla.org/integration/gaia-central/rev/82fec5898683
Author: John Hu <johu@mozilla.com>
Desc: Merge pull request #15631 from huchengtw-moz/gallery/Bug_948362_nfc_sharing

Bug 948362 - [Gaia][Gallery] gallery application: handle data transfer, r=dmarcos

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https://hg.mozilla.org/integration/gaia-central/rev/4529ef9d5547
Author: John Hu <johu@mozilla.com>
Desc: Bug 948362 - [Gaia][Gallery] gallery application: handle data transfer
Bumping manifests a=b2g-bump