audio: Do not use A2DP/LE status when populating device port

The events about the status of A2DP and LE are sent by
the framework asynchronously with attempts to connect
an external device. As a result, the connection attempt
may be rejected by the bluetooth HAL module.

Bug: 327711955
Test: atest VtsHalAudioCoreTargetTest
Change-Id: Iecef0ee6a66cd290237fdcccd6a7016e9622c4b0