libperf: Add PERF_RECORD_HEADER_TRACING_DATA 'struct tracing_data_event' to perf/event.h

Move the PERF_RECORD_HEADER_TRACING_DATA event definition to libperf's event.h.

In order to keep libperf simple, we switch 'u64/u32/u16/u8'
types used events to their generic '__u*' versions.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20190828135717.7245-6-jolsa@kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/lib/include/perf/event.h

@@ -175,4 +175,9 @@ struct event_type_event {
 	struct perf_trace_event_type	 event_type;
 };
 
+struct tracing_data_event {
+	struct perf_event_header header;
+	__u32			 size;
+};
+
 #endif /* __LIBPERF_EVENT_H */

tools/perf/util/event.h

@@ -337,11 +337,6 @@ struct events_stats {
 	u32 nr_proc_map_timeout;
 };
 
-struct tracing_data_event {
-	struct perf_event_header header;
-	u32 size;
-};
-
 struct id_index_entry {
 	u64 id;
 	u64 idx;