include/asm: Create asm_byteorder.h header file

This file is used by the external library: libpldm.

Signed-off-by: Christophe Lombard <clombard@linux.ibm.com>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Reza Arbab <arbab@linux.ibm.com>
diff --git a/include/asm/byteorder.h b/include/asm/byteorder.h
new file mode 100644
index 0000000..9155d7d
--- /dev/null
+++ b/include/asm/byteorder.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+ * Copyright 2022 IBM Corp.
+ */
+
+#ifndef _ASM_BYTEORDER_H
+#define _ASM_BYTEORDER_H
+
+#include <endian.h>
+
+#endif /* _ASM_BYTEORDER_H */