sound: Use octal not symbolic permissions

Convert the S_<FOO> symbolic permissions to their octal equivalents as
using octal and not symbolic permissions is preferred by many as more
readable.

see: https://lkml.org/lkml/2016/8/2/1945

Done with automated conversion via:
$ ./scripts/checkpatch.pl -f --types=SYMBOLIC_PERMS --fix-inplace <files...>

Miscellanea:

o Wrapped one multi-line call to a single line

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/firewire/fireworks/fireworks_proc.c

@@ -219,7 +219,7 @@ void snd_efw_proc_init(struct snd_efw *efw)
 					  efw->card->proc_root);
 	if (root == NULL)
 		return;
-	root->mode = S_IFDIR | S_IRUGO | S_IXUGO;
+	root->mode = S_IFDIR | 0555;
 	if (snd_info_register(root) < 0) {
 		snd_info_free_entry(root);
 		return;