cpufreq: stats: initialize 'cur_time' on its definition

'cur_time' is defined in the first line and is then assigned a value
in the next line. Initialize it while defining it.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/cpufreq/cpufreq_stats.c

@@ -36,9 +36,8 @@ static DEFINE_PER_CPU(struct cpufreq_stats *, cpufreq_stats_table);
 static int cpufreq_stats_update(unsigned int cpu)
 {
 	struct cpufreq_stats *stat;
-	unsigned long long cur_time;
+	unsigned long long cur_time = get_jiffies_64();
 
-	cur_time = get_jiffies_64();
 	spin_lock(&cpufreq_stats_lock);
 	stat = per_cpu(cpufreq_stats_table, cpu);
 	if (stat->time_in_state)