cpufreq: ondemand: fix wrong delay sampling rate

Restore the correct delay value for ondemand's od_dbs_timer, as it was
changed erroneously in commit 83f0e55 (cpufreq: governors: remove
redundant code).

Signed-off-by: Fabio Baltieri <[e-mail]>
Reviewed-by: Viresh Kumar <[e-mail]>
Signed-off-by: Rafael J. Wysocki <[e-mail]>

drivers/cpufreq/cpufreq_ondemand.c

···
 			dbs_info->sample_type = OD_SUB_SAMPLE;
 			delay = dbs_info->freq_hi_jiffies;
 		} else {
-			delay = delay_for_sampling_rate(dbs_info->rate_mult);
+			delay = delay_for_sampling_rate(od_tuners.sampling_rate
+						* dbs_info->rate_mult);
 		}
 	}