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

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https://hg.mozilla.org/integration/gaia-central/rev/eb9483ecb522
Author: Ryan VanderMeulen <rvandermeulen@mozilla.com>
Desc: Merge pull request #15789 from svic/Bug_964186

Bug 964186: Rename MozNdefRecord to MozNDEFRecord

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https://hg.mozilla.org/integration/gaia-central/rev/8e60e234c202
Author: Garner Lee <garner.lee@telekom.com>
Desc: Bug 964186: Rename MozNdefRecord to MozNDEFRecord r=alive
Bumping manifests a=b2g-bump