kernel test robot reported unknown target name warning:

Documentation/trace/osnoise-tracer.rst:112: WARNING: Unknown target name: "no".

The warning causes NO_ prefix to be rendered as link text instead, which
points to non-existent link target.

Escape the prefix underscore to fix the warning.

Link: https://lkml.kernel.org/r/20221125034300.24168-1-bagasdotme@gmail.com

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Ammar Faizi <ammarfaizi2@gnuweeb.org>
Cc: GNU/Weeb Mailing List <gwml@vger.gnuweeb.org>
Link: https://lore.kernel.org/linux-doc/202211240447.HxRNftE5-lkp@intel.com/
Fixes: 67543cd6 ("Documentation/osnoise: Add osnoise/options documentation")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Acked-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>