tpm: simplify code by using %*phN specifier

Instead of looping by ourselves we may use %*phN specifier to dump a small
buffer.

Signed-off-by: Andy Shevchenko <[e-mail]>
Reviewed-by: Jason Gunthorpe <[e-mail]>
[ PHuewe: removed now unused variable i ]
Signed-off-by: Peter Huewe <[e-mail]>

drivers/char/tpm/tpm_eventlog.c

···
 static int tpm_ascii_bios_measurements_show(struct seq_file *m, void *v)
 {
 	int len = 0;
-	int i;
 	char *eventname;
 	struct tcpa_event *event = v;
 	unsigned char *event_entry =
···
 	seq_printf(m, "%2d ", event->pcr_index);
 
 	/* 2nd: SHA1 */
-	for (i = 0; i < 20; i++)
-		seq_printf(m, "%02x", event->pcr_value[i]);
+	seq_printf(m, "%20phN", event->pcr_value);
 
 	/* 3rd: event type identifier */
 	seq_printf(m, " %02x", event->event_type);