add boot partition size

hc

2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d

 kernel/arch/arm/mach-stm32/Makefile
..
..
@@ -1 +1,2 @@
1
+# SPDX-License-Identifier: GPL-2.0-only
1
2
 obj-y += board-dt.o