trace-cmd documentation: Update the trace-cmd report output

The output of trace-cmd report has changed. It now shows the latency data
column by default. Reflect this update in the man pages.

Link: https://lore.kernel.org/linux-trace-devel/20240725154215.4ab1b205@gandalf.local.home

Cc: Julia Lawall <Julia.Lawall@inria.fr>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>