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/cli/takeover/BUILD.bazel b/metropolis/cli/takeover/BUILD.bazel
index ca6e625..1b8f182 100644
--- a/metropolis/cli/takeover/BUILD.bazel
+++ b/metropolis/cli/takeover/BUILD.bazel
@@ -24,7 +24,7 @@
         "//third_party/linux",  #keep
         "//third_party:ucode",  #keep
         ":initramfs",  #keep
-        "//metropolis/node/core/abloader",  #keep
+        "//metropolis/node/abloader",  #keep
     ],
     importpath = "source.monogon.dev/metropolis/cli/takeover",
     visibility = ["//visibility:private"],