kselftest/alsa - mixer-test: Fix the print format specifier warning

GCC 13.2.0 compiler issued the following warning:

mixer-test.c:350:80: warning: format ‘%ld’ expects argument of type ‘long int’, \
			      but argument 5 has type ‘unsigned int’ [-Wformat=]
  350 |                         ksft_print_msg("%s.%d value %ld more than item count %ld\n",
      |                                                                              ~~^
      |                                                                                |
      |                                                                                long int
      |                                                                              %d
  351 |                                        ctl->name, index, int_val,
  352 |                                        snd_ctl_elem_info_get_items(ctl->info));
      |                                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                                        |
      |                                        unsigned int

Fixing the format specifier in call to ksft_print_msg() according to the
compiler suggestion silences the warning.

Fixes: 10f2f19 ("kselftest: alsa: Validate values read from enumerations")
Cc: Mark Brown <[email protected]>
Cc: Jaroslav Kysela <[email protected]>
Cc: Takashi Iwai <[email protected]>
Cc: Shuah Khan <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Mirsad Todorovac <[email protected]>
Acked-by: Mark Brown <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Takashi Iwai <[email protected]>

Author: Mirsad Todorovac

tools/testing/selftests/alsa/mixer-test.c

@@ -347,7 +347,7 @@ static bool ctl_value_index_valid(struct ctl_data *ctl,
 		}
 
 		if (int_val >= snd_ctl_elem_info_get_items(ctl->info)) {
-			ksft_print_msg("%s.%d value %ld more than item count %ld\n",
+			ksft_print_msg("%s.%d value %ld more than item count %u\n",
 				       ctl->name, index, int_val,
 				       snd_ctl_elem_info_get_items(ctl->info));
 			return false;