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

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https://hg.mozilla.org/integration/gaia-central/rev/627f494cb7b6
Author: Ian Liu <iliu@mozilla.com>
Desc: Merge pull request #11983 from ian-liu/bluetooth/Bug821186_remove_workaround_of_using_deviceStorage_in_BT_transfer

Bug 821186 - [Gaia::Bluetooth] Remove workaround of using deviceStorage in bluetooth transfer after Bug 811615 is fixed, r=@dominickuo

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https://hg.mozilla.org/integration/gaia-central/rev/411d400ae0d8
Author: ian-liu <iliu@mozilla.com>
Desc: Bug 821186 - [Gaia::Bluetooth] Remove workaround of using deviceStorage in bluetooth transfer after Bug 811615 is fixed