unit/AVDTP: Add /TP/SIG/SMG/BI-06-C test
unit/AVDTP: Add /TP/SIG/SMG/BI-06-C test

Verify that the IUT (ACP) is able to issue a reject response signal upon
tester's request in answer to a get capabilities command.

ComputeCycles/bluez,pkarasev3/bluez,mapfau/bluez,ComputeCycles/bluez,silent-snowman/bluez,ComputeCycles/bluez,mapfau/bluez,mapfau/bluez,silent-snowman/bluez,pkarasev3/bluez,mapfau/bluez,pstglia/external-bluetooth-bluez,silent-snowman/bluez,pkarasev3/bluez,ComputeCycles/bluez,pkarasev3/bluez,pstglia/external-bluetooth-bluez,pstglia/external-bluetooth-bluez,silent-snowman/bluez,pstglia/external-bluetooth-bluez