PM / cpufreq: Initialise the cpu field during conservative governor start

This change initialises the cpu id field of cs_cpu_dbs_info structure in
conservative governor and keep this consistent with other governors.
Similar initialisation is present in ondemand governor.
Signed-off-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

drivers/cpufreq/cpufreq_conservative.c

@@ -504,6 +504,7 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
 				j_dbs_info->prev_cpu_nice =
 						kcpustat_cpu(j).cpustat[CPUTIME_NICE];
 		}
+		this_dbs_info->cpu = cpu;
 		this_dbs_info->down_skip = 0;
 		this_dbs_info->requested_freq = policy->cur;