Add the equivalents to pr_<level>_once.
Suggested-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NJoe Perches <joe@perches.com>
Acked-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>