handle man-page for rv-mon-sched in redhat/kernel.spec.template

Make the rpm spec file handle the man-page for rv-mon-sched[1] which was added in the past few days and reached mainline a few hours ago.

Link: 03abeaa6 ("Documentation/rv: Add docs for the sched monitors") [1] Signed-off-by: Thorsten Leemhuis fedora@leemhuis.info