disable kernel build waring

hc

2024-05-10 093a6c67005148ae32a5c9e4553491b9f5c2457b

 kernel/arch/arm/mach-sti/Makefile
..
..
@@ -1,2 +1,3 @@
1
-obj-$(CONFIG_SMP)		+= platsmp.o headsmp.o
1
+# SPDX-License-Identifier: GPL-2.0-only
2
+obj-$(CONFIG_SMP)		+= platsmp.o
2
3
 obj-$(CONFIG_ARCH_STI) 		+= board-dt.o