cpufreq: Reformat printk() statements

 - Add missing newlines
 - Coalesce format fragments
 - Convert printks to pr_<level>
 - Align arguments

Based-on-patch-by: Sören Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>