LeAudio: Fix suspend/resume loop

Depending on the order of calls to audio HAL sink and source resume requests,
we could end up in a long suspend/resume cycle that was mostly visible when
switching to Live recording scenario. This delayed the recording session
resume.

This change adjusts the resume logic to properly take into the account
sink and source coupling in the configuration phase and the independent
resumes from the audio frameworks on either directions.

Tag: #feature
Bug: 272029679
Test: manually tested
Test: atest --host bluetooth_le_audio_client_test bluetooth_le_audio_test --no-bazel-mode
Change-Id: I63ed242af49dd6805fb3d7aaaa5ce02ed01bf7c4