perf: Fix UAPI fallout

The UAPI commits forgot to test tooling builds such as tools/perf/,
and this fixes the fallout.

Manual conversion.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index a89cbbb..2762877 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -112,7 +112,7 @@
 #include <sys/types.h>
 #include <sys/syscall.h>
 
-#include "../../include/linux/perf_event.h"
+#include "../../include/uapi/linux/perf_event.h"
 #include "util/types.h"
 #include <stdbool.h>