unit/test-gatt: Add TP/GAR/CL/BI-30-C test
unit/test-gatt: Add TP/GAR/CL/BI-30-C test

Verify Generic Attribute Profile client behavior when the Read Long
Characteristic Descriptor procedure fails due to invalid handle.

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