LeAudio: Adjust audio set configurations

This changes the "Recording" scnenario to "Live" for the
consistency with the context type mapping in the configuration
provider implementation. This also better represents the actual
target use case which will be bidirectional and not just for the
microphone.

Bug: 233976574
Test: manual testing
Change-Id: I84391473d6220261eb2ecf50f10fe60866c8fb52