selinux: fix typo in filesystem name

Correct the filesystem name to "binder" to enable genfscon per-file
labelling for binderfs.

Fixes: 7a4b5194 ("selinux: allow per-file labelling for binderfs")
Signed-off-by: Hridya Valsaraju <hridya@google.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
[PM: slight style changes to the subj/description]
Signed-off-by: Paul Moore <paul@paul-moore.com>

security/selinux/hooks.c

@@ -698,7 +698,7 @@ static int selinux_set_mnt_opts(struct super_block *sb,
 
 	if (!strcmp(sb->s_type->name, "debugfs") ||
 	    !strcmp(sb->s_type->name, "tracefs") ||
-	    !strcmp(sb->s_type->name, "binderfs") ||
+	    !strcmp(sb->s_type->name, "binder") ||
 	    !strcmp(sb->s_type->name, "pstore"))
 		sbsec->flags |= SE_SBGENFS;