make buildworld failure on arm64 on -current n267777

From: void <void_at_f-m.fm>
Date: Fri, 26 Jan 2024 00:14:44 UTC
In /usr/src # git rev-list --count --first-parent HEAD
267777

include/machine -> /usr/src/sys/arm64/include 
Building /usr/obj/usr/src/arm64.aarch64/stand/efi/loader_4th/vers.c 
Building /usr/obj/usr/src/arm64.aarch64/stand/efi/loader_4th/8x16.c 
Building /usr/obj/usr/src/arm64.aarch64/stand/efi/loader_4th/autoload.o 
Building /usr/obj/usr/src/arm64.aarch64/stand/efi/loader_4th/bootinfo.o 
Building /usr/obj/usr/src/arm64.aarch64/stand/efi/loader_4th/conf.o 
Building /usr/obj/usr/src/arm64.aarch64/stand/efi/loader_4th/copy.o 
Building /usr/obj/usr/src/arm64.aarch64/stand/efi/loader_4th/efi_main.o 
Building /usr/obj/usr/src/arm64.aarch64/stand/efi/loader_4th/framebuffer.o 
Building /usr/obj/usr/src/arm64.aarch64/stand/efi/loader_4th/main.o 
/usr/src/stand/efi/loader_4th/../loader/main.c:63:10: fatal error: 'platform/acfreebsd.h' file not found 63 | #include "platform/acfreebsd.h" | ^~~~~~~~~~~~~~~~~~~~~~ 1 error generated. 

make[2]: stopped in /usr/src make[2]: 
stopped in /usr/src make[4]: 
stopped in /usr/src/secure/lib make[3]: 
stopped in /usr/src/secure make[2]: 
stopped in /usr/src make[3]: 
stopped in /usr/src/lib make[2]: 
stopped in /usr/src 

93.16 real 26.94 user 8.34 sys