[S390] Replace ENOTSUPP usage with EOPNOTSUPP

ENOTSUPP is not supposed to leak to userspace so lets just use
EOPNOTSUPP everywhere.
Doesn't fix a bug, but makes future reviews easier.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

arch/s390/hypfs/hypfs_diag.c

@@ -488,7 +488,7 @@ out:
 
 static int diag224(void *ptr)
 {
-	int rc = -ENOTSUPP;
+	int rc = -EOPNOTSUPP;
 
 	asm volatile(
 		"	diag	%1,%2,0x224\n"
@@ -507,7 +507,7 @@ static int diag224_get_name_table(void)
 		return -ENOMEM;
 	if (diag224(diag224_cpu_names)) {
 		kfree(diag224_cpu_names);
-		return -ENOTSUPP;
+		return -EOPNOTSUPP;
 	}
 	EBCASC(diag224_cpu_names + 16, (*diag224_cpu_names + 1) * 16);
 	return 0;