[VOL-2778] Introducing Service definition in order to support the TT workflow

Change-Id: Ib171502e8940b5d0b219620a4503f7095d376d7a
diff --git a/internal/bbsim/api/grpc_api_server.go b/internal/bbsim/api/grpc_api_server.go
index 72f999e..7ed8f8d 100644
--- a/internal/bbsim/api/grpc_api_server.go
+++ b/internal/bbsim/api/grpc_api_server.go
@@ -74,7 +74,7 @@
 		pons = append(pons, &p)
 	}
 
-	oltAddress := strings.Split(common.Options.BBSim.OpenOltAddress, ":")[0]
+	oltAddress := strings.Split(common.Config.BBSim.OpenOltAddress, ":")[0]
 	if oltAddress == "" {
 		oltAddress = getOltIP().String()
 	}