third_party/edk2: use toolchain-bundle for edk2 build

This moves the build into a custom rule instead of a genrule.
This also adds the AARCH64 build and renames the files to be more
generic

Change-Id: If6e3cecaf4011e2e39f13b1d40bcc7060cee3afb
Reviewed-on: https://review.monogon.dev/c/monogon/+/4154
Reviewed-by: Lorenz Brun <lorenz@monogon.tech>
Tested-by: Jenkins CI
diff --git a/metropolis/installer/test/BUILD.bazel b/metropolis/installer/test/BUILD.bazel
index 8aab4b4..8c6bc8d 100644
--- a/metropolis/installer/test/BUILD.bazel
+++ b/metropolis/installer/test/BUILD.bazel
@@ -9,14 +9,14 @@
         ":kernel",
         "//build/toolchain/toolchain-bundle:qemu-kvm",
         "//metropolis/installer/test/testos:testos_image",
-        "//third_party/edk2:OVMF_CODE.fd",
-        "//third_party/edk2:OVMF_VARS.fd",
+        "//third_party/edk2:CODE.fd",
+        "//third_party/edk2:VARS.fd",
     ],
     importpath = "source.monogon.dev/metropolis/installer/test",
     visibility = ["//visibility:private"],
     x_defs = {
-        "xOvmfVarsPath": "$(rlocationpath //third_party/edk2:OVMF_VARS.fd )",
-        "xOvmfCodePath": "$(rlocationpath //third_party/edk2:OVMF_CODE.fd )",
+        "xOvmfVarsPath": "$(rlocationpath //third_party/edk2:VARS.fd )",
+        "xOvmfCodePath": "$(rlocationpath //third_party/edk2:CODE.fd )",
         "xInstallerPath": "$(rlocationpath :kernel )",
         "xImagePath": "$(rlocationpath //metropolis/installer/test/testos:testos_image )",
         "xQEMUPath": "$(rlocationpath //build/toolchain/toolchain-bundle:qemu-kvm )",