cpufreq: Fix two debug messages in cpufreq_set_policy()

Remove the redundant "cpufreq:" prefix from two debug messages in
cpufreq_set_policy().

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>

drivers/cpufreq/cpufreq.c

@@ -2290,7 +2290,7 @@ static int cpufreq_set_policy(struct cpufreq_policy *policy,
 	}
 
 	if (new_policy->governor == policy->governor) {
-		pr_debug("cpufreq: governor limits update\n");
+		pr_debug("governor limits update\n");
 		cpufreq_governor_limits(policy);
 		return 0;
 	}
@@ -2311,7 +2311,7 @@ static int cpufreq_set_policy(struct cpufreq_policy *policy,
 	if (!ret) {
 		ret = cpufreq_start_governor(policy);
 		if (!ret) {
-			pr_debug("cpufreq: governor change\n");
+			pr_debug("governor change\n");
 			sched_cpufreq_governor_change(policy, old_gov);
 			return 0;
 		}