SUNRPC: svc_show_status() macro should have enum definitions

Clean up: Add missing TRACE_DEFINE_ENUMs in
include/trace/events/sunrpc.h
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

include/trace/events/sunrpc.h

@@ -1057,6 +1057,17 @@ TRACE_EVENT(svc_recv,
 			show_rqstp_flags(__entry->flags))
 );
 
+TRACE_DEFINE_ENUM(SVC_GARBAGE);
+TRACE_DEFINE_ENUM(SVC_SYSERR);
+TRACE_DEFINE_ENUM(SVC_VALID);
+TRACE_DEFINE_ENUM(SVC_NEGATIVE);
+TRACE_DEFINE_ENUM(SVC_OK);
+TRACE_DEFINE_ENUM(SVC_DROP);
+TRACE_DEFINE_ENUM(SVC_CLOSE);
+TRACE_DEFINE_ENUM(SVC_DENIED);
+TRACE_DEFINE_ENUM(SVC_PENDING);
+TRACE_DEFINE_ENUM(SVC_COMPLETE);
+
 #define svc_show_status(status)				\
 	__print_symbolic(status,			\
 		{ SVC_GARBAGE,	"SVC_GARBAGE" },	\