main's recent loader.efi broken in an example aarch64 update context

[I've cc'd some folks that recently committed onto main's stand/
or did the llvm14 toolchain merge. I've no clue what makes the
difference.]

Note: the MACCHIATObin Double Shot has a EDK2 based
UEFI/ACPI context for how it is set up to boot.

In trying to update a MACCHIATObin Double Shot to a main
vintage with llvm14 I got boot attempts that look like the
below at the tail of its visible activity (serial console):

QUOTE
Loading kernel...
/boot/kernel/kernel text=0x2a8 text=0x91b040 text=0x216434 data=0x1b8128 data=0x
0+0x2ae000 0x8+0x130980+0x8+0x157b86
Loading configured modules...
/boot/kernel/cryptodev.ko text=0x16c3 text=0x27a0 data=0x628+0x10 0x8+0xcd8+0x8+
0x96c
/boot/kernel/zfs.ko text=0xa81a0 text=0x209310 data=0x26a88+0xba46c 0x8+0x32a78+
0x8+0x2c37e
/etc/hostid size=0x25
/boot/entropy size=0x1000
No valid device tree blob found!
WARNING! Trying to fire up the kernel, but no device tree blob found!
EFI framebuffer information:
addr, size     0x0, 0x0
dimensions     0 x 0
stride         0
masks          0x00000000, 0x00000000, 0x00000000, 0x00000000


Synchronous Exception at 0x00000000B460F554
END QUOTE

Part of the update was updating the loader.efi copies:

# ls -Tldt /mnt/efi/*/*
-r-xr-xr-x  1 root  wheel  1204828 May 14 18:53:16 2022 /mnt/efi/boot/bootaa64.efi
-r-xr-xr-x  1 root  wheel  1204828 May 14 18:53:16 2022 /mnt/efi/freebsd/loader.efi



I had to revert to copies of a prior loader.efi vintage that
I had around to copy in order to boot the otherwise updated
USB3 drive. Nothing else had to change. Copied from:

CA72_Mbin_ZFS aarch64  1400057 1400057 # ls -Tldt /boot/efi/efi/*/*
-rwxr-xr-x  1 root  wheel  1287580 Apr 28 21:46:46 2022 /boot/efi/efi/boot/bootaa64.efi
-rwxr-xr-x  1 root  wheel  1287580 Apr 28 21:46:46 2022 /boot/efi/efi/freebsd/loader.efi




===
Mark Millard
marklmi at yahoo.com