Revert "disable L4TLauncher.efi"

This reverts commit 1ea5f96.

Author: Princemachiavelli

device-pkgs/flash-script.nix

@@ -48,8 +48,9 @@
   ${lib.optionalString (uefi-firmware != null) ''
   cp ${uefi-firmware}/uefi_jetson.bin bootloader/uefi_jetson.bin
 
-  # Disable installing L4TLauncher to ESP partition.
-  rm bootloader/BOOTAA64.efi
+  # For normal NixOS usage, we'd probably use systemd-boot or GRUB instead,
+  # but lets replace the upstream L4TLauncher EFI payload anyway
+  cp ${uefi-firmware}/L4TLauncher.efi bootloader/BOOTAA64.efi
 
   # Replace additional dtbos
   cp ${uefi-firmware}/dtbs/*.dtbo kernel/dtb/

pkgs/uefi-firmware/default.nix

@@ -81,9 +81,6 @@ let
       # PR: https://github.com/NVIDIA/edk2-nvidia/pull/76
       # Can't find commit from Nvidia that actually fixes PR#76
       ./eqos-driver-fix-clock-name.patch
-      
-      # L4TLauncher is broken and crashes boot.
-      ./disable-l4tlauncher.patch
 
       ./capsule-authentication.patch
 
@@ -253,6 +250,10 @@ let
       ${jetson-edk2-uefi}/FV/UEFI_NS.Fv \
       $out/uefi_jetson.bin
 
+    python3 ${edk2-nvidia}/Silicon/NVIDIA/Tools/FormatUefiBinary.py \
+      ${jetson-edk2-uefi}/AARCH64/L4TLauncher.efi \
+      $out/L4TLauncher.efi
+
     mkdir -p $out/dtbs
     for filename in ${jetson-edk2-uefi}/AARCH64/Silicon/NVIDIA/Tegra/DeviceTree/DeviceTree/OUTPUT/*.dtb; do
       cp $filename $out/dtbs/$(basename "$filename" ".dtb").dtbo