FROMLIST: stm class: ftrace: enable supported trace export flag

Set flags for trace_export. Export function trace, event trace
and trace marker to stm.

Bug: 160464759
Link: https://lore.kernel.org/patchwork/cover/1280618/
Signed-off-by: Tingwei Zhang <tingwei@codeaurora.org>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Change-Id: Ia4ce8e860372e9149e9763f2fb07f18d6b7e56a6

drivers/hwtracing/stm/ftrace.c

@@ -46,6 +46,8 @@ static int stm_ftrace_link(struct stm_source_data *data)
 	struct stm_ftrace *sf = container_of(data, struct stm_ftrace, data);
 
 	sf->ftrace.write = stm_ftrace_write;
+	sf->ftrace.flags = TRACE_EXPORT_FUNCTION | TRACE_EXPORT_EVENT
+			| TRACE_EXPORT_MARKER;
 
 	return register_ftrace_export(&sf->ftrace);
 }