Include only the Basic Capability for AVDTP GetCapabilities response

Include only the Basic Capability for AVDTP GetCapabilities response

AVDTP GetCapabilities request should return only the Basic
Capabilities, as defined in the AVDTP 1.3 spec.
Otherwise, returning a capability such as Delay Reporting would
result in some remote devices droping the AVDTP connection

Also:
 * Print SEP protocol service capabilities per Stream Control
   Block when dumping the state to a bugreport
 * Add extra log messages

Bug: 77668253
Test: Manual: connect with Momentum M2 Headset and examine the
      AVDTP GetCapabilities response.

Change-Id: I34f2e8ff586115a38c3436b2b6300514f65346a9