LeAudio: Fix stream configurations duplicates and naming

These configurations are identical and use the remote preffered
parameters but have wrong names with the QoS digit.

Bug: 271941416
Tag: #feature
Test: atest --host bluetooth_le_audio_test --no-bazel-mode
Change-Id: If5994eeebb8f1d963e38a7afe92a826f1f997ace