SAP: Fix handling ongoing call in sap-dummy
SAP: Fix handling ongoing call in sap-dummy

There is no need to send sap_connect_rsp when "call" is ended. Status
Indication is enough.

Also we should provide max supported msg size in the connect response
having status: OK_ONGOING_CALL.

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