cpufreq: conservative: update frequency when limits are relaxed

Reevaluate CPU load and update frequency immediately whenever limits
are changed. Currently conservative doesn't do that when limits are
relaxed, wasting power on systems with relatively low sampling rate.
Signed-off-by: NMichal Pecio <mpecio@nvidia.com>
Reviewed-by: NThomas Renninger <trenn@suse.de>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

drivers/cpufreq/cpufreq_conservative.c

@@ -584,6 +584,7 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
 			__cpufreq_driver_target(
 					this_dbs_info->cur_policy,
 					policy->min, CPUFREQ_RELATION_L);
+		dbs_check_cpu(this_dbs_info);
 		mutex_unlock(&this_dbs_info->timer_mutex);
 
 		break;