Bluetooth: audio: ascs: Fix ASE state transition due to CIS link loss

This fixes ASE state transition to QoS Configured state that shall be
done autononously when CIS has been terminated due to link loss.

As per ASCS v1.0:
"If the server detects link loss of a CIS for an ASE in the Streaming
state or the Disabling state, the server shall immediately transition
that ASE to the QoS Configured state. Link loss of a CIS for an ASE in
any state other than Streaming or Disabling shall not cause a
transition of the ASE state machine."

Fixes: #60669
Signed-off-by: Mariusz Skamra <mariusz.skamra@codecoup.pl>