add DSUA debug constant

Change-Id: I4a3a8189564345700ea4825983ab39a8411227f4
diff --git a/openbsc/src/libcommon/debug.c b/openbsc/src/libcommon/debug.c
index 232f6f7..cf5beeb 100644
--- a/openbsc/src/libcommon/debug.c
+++ b/openbsc/src/libcommon/debug.c
@@ -170,6 +170,11 @@
 		.description = "Radio Access Network Application Part Protocol",
 		.enabled = 1, .loglevel = LOGL_DEBUG,
 	},
+	[DSUA] = {
+		.name = "DSUA",
+		.description = "SCCP User Adaptation Protocol",
+		.enabled = 1, .loglevel = LOGL_DEBUG,
+	},
 };
 
 enum log_filter {