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

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https://hg.mozilla.org/integration/gaia-central/rev/6a7ea5909a75
Author: Ian Liu <iliu@mozilla.com>
Desc: Merge pull request #12360 from ian-liu/bluetooth/Bug898412_Redundant_notification_of_received_file

Bug 898412 - [Bluetooth] Redundant notification of received file, r=@alivedise

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https://hg.mozilla.org/integration/gaia-central/rev/43a7e72e185c
Author: ian-liu <iliu@mozilla.com>
Desc: Bug 898412 - [Bluetooth] Redundant notification of received file