metropolis/node: move misplaced packages out of core

abloader, bios_bootcode and minit don't run as part of the core process,
so it doesn't make sense to have them in //metropolis/node/core.
This changes moves these three to //metropolis/node.

Change-Id: I908efb311a138f07a9f1de8e3c23437ff00131ee
Reviewed-on: https://review.monogon.dev/c/monogon/+/4196
Reviewed-by: Tim Windelschmidt <tim@monogon.tech>
Tested-by: Jenkins CI
diff --git a/metropolis/node/bios_bootcode/genlogo/BUILD.bazel b/metropolis/node/bios_bootcode/genlogo/BUILD.bazel
new file mode 100644
index 0000000..c8769a4
--- /dev/null
+++ b/metropolis/node/bios_bootcode/genlogo/BUILD.bazel
@@ -0,0 +1,14 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_binary", "go_library")
+
+go_library(
+    name = "genlogo_lib",
+    srcs = ["main.go"],
+    importpath = "source.monogon.dev/metropolis/node/bios_bootcode/genlogo",
+    visibility = ["//visibility:private"],
+)
+
+go_binary(
+    name = "genlogo",
+    embed = [":genlogo_lib"],
+    visibility = ["//visibility:public"],
+)