PM / devfreq: Fix the wrong end with semicolon

Fix the wrong grammar at the end of code line by using semicolon.

Cc: stable vger.kernel.org
Fixes: 490a421 ("PM / devfreq: Add debugfs support with devfreq_summary file")
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>

Author: chanwoochoi

drivers/devfreq/devfreq.c

@@ -1800,9 +1800,9 @@ static int devfreq_summary_show(struct seq_file *s, void *data)
 #endif
 
 		mutex_lock(&devfreq->lock);
-		cur_freq = devfreq->previous_freq,
+		cur_freq = devfreq->previous_freq;
 		get_freq_range(devfreq, &min_freq, &max_freq);
-		polling_ms = devfreq->profile->polling_ms,
+		polling_ms = devfreq->profile->polling_ms;
 		mutex_unlock(&devfreq->lock);
 
 		seq_printf(s,