perf build: Include libtraceevent headers directly indicated by pkg-config

Currently the libtraceevent's found by pkg-config, which give the
include path as:

  [root@localhost tmp]# pkg-config --cflags libtraceevent
  -I/usr/local/include/traceevent

So we should include the libtraceevent headers directly without
"traceevent/" prefix. Update all the users.

Fixes: 0f0e1f4456 ("perf build: Use pkg-config for feature check for libtrace{event,fs}")
Suggested-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/linux-perf-users/ZyF5_Hf1iL01kldE@google.com/
Signed-off-by: Yicong Yang <yangyicong@hisilicon.com>
Cc: leo.yan@arm.com
Cc: amadio@gentoo.org
Cc: linuxarm@huawei.com
Link: https://lore.kernel.org/r/20241105105649.45399-1-yangyicong@huawei.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>

tools/perf/util/trace-event-scripting.c

@@ -10,7 +10,7 @@
 #include <string.h>
 #include <errno.h>
 #ifdef HAVE_LIBTRACEEVENT
-#include <traceevent/event-parse.h>
+#include <event-parse.h>
 #endif
 
 #include "debug.h"