rtla: Fix tracer name

The correct tracer name is timerlat and not timelat.

Link: https://lore.kernel.org/linux-trace-devel/20220808180343.22262-1-alexandre.vicenzi@suse.com



Signed-off-by: Alexandre Vicenzi <alexandre.vicenzi@suse.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>