tree 9859b4a236f03596858f272f184e0301626bb3ec
parent e2c4760a2246b36ead301872db9c0db8ffadbb95
author Rongxuan Liu <rongxuan@google.com> 1685740176 +0000
committer Rongxuan Liu <rongxuan@google.com> 1685740176 +0000

[le audio] Broadcast reset callback to null after unregister

After unregister callback, set mCallback to null to avoid register
failure after BT off and on.

Bug: 238010310
Test: atest BluetoothLeBroadcastAssistantTest
Change-Id: I6ab531739fcb672e835ea77cd94956971cd56c25