tracing/selftest: Add test to test hist trigger between kernel event and trace_marker

Add a test that tests a trigger that is initiated by a kernel event
(sched_waking) and compared to a write to the trace_marker.

Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>