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

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https://hg.mozilla.org/integration/gaia-central/rev/5b31dcf74b22
Author: Dominic Kuo <dkuo@mozilla.com>
Desc: Merge pull request #11979 from EragonJ/bug-835243

Bug 835243 -  [OPEN_][Bluetooth]Bluetooth device name can be unrestricted input and does not have limit, r=@crh0716

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https://hg.mozilla.org/integration/gaia-central/rev/2ef6f22ea2d7
Author: EragonJ <eragonj@eragonj.me>
Desc: Bug 835243 - add a confirm window to tell users rename again

  - refactor code, take the check part befoer getting deviceInfo
  - Remove some empty lines and check nameEntered is null case