MAINTAINERS: Update tracing tree details

Acked-by: Steven Rostedt <srostedt@redhat.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

MAINTAINERS

@@ -2118,13 +2118,16 @@ F:	Documentation/filesystems/caching/
 F:	fs/fscache/
 F:	include/linux/fscache*.h
 
-FTRACE
+TRACING
 M:	Steven Rostedt <rostedt@goodmis.org>
+M:	Frederic Weisbecker <fweisbec@gmail.com>
+M:	Ingo Molnar <mingo@redhat.com>
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git tracing/core
 S:	Maintained
 F:	Documentation/trace/ftrace.txt
 F:	arch/*/*/*/ftrace.h
 F:	arch/*/kernel/ftrace.c
-F:	include/*/ftrace.h
+F:	include/*/ftrace.h include/trace/ include/linux/trace*.h
 F:	kernel/trace/
 
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