disable kernel build waring

hc

2024-05-10 093a6c67005148ae32a5c9e4553491b9f5c2457b

 kernel/drivers/scsi/arcmsr/Makefile
..
..
@@ -1,3 +1,4 @@
1
+# SPDX-License-Identifier: GPL-2.0-only
1
2
 # File: drivers/arcmsr/Makefile
2
3
 # Makefile for the ARECA PCI-X PCI-EXPRESS SATA RAID controllers SCSI driver.
3
4