Changes

xua: Improve logging around unexpected snm messages

Log rx of unexpected message type according to configured role.
Decrease verbosity of DAUD logging to match the new logging.

For SUA we can use M3UA's m3ua_snm_msgt_names because the value/strings
are the same and they are actually used through m3ua_msg_class_snm in
xua_dialect_sua.

Change-Id: I697e52dfd733cb9ee260bba133204a7462c4e8ee