cryptsetup, lvm2, systemd: Break cyclic dependency at a different point

The cyclic dependency of systemd → cryptsetup → lvm2 → udev=systemd
needs to be broken somewhere.  The previous strategy of building
cryptsetup with an lvm2 built without udev (#66856) caused the
installer.luksroot test to fail.  Instead, build lvm2 with a udev built
without cryptsetup.

Fixes #96479.

Signed-off-by: Anders Kaseorg <andersk@mit.edu>

nixos/modules/system/boot/stage-1.nix

@@ -87,9 +87,7 @@ let
   # copy what we need.  Instead of using statically linked binaries,
   # we just copy what we need from Glibc and use patchelf to make it
   # work.
-  extraUtils = let
-    # Use lvm2 without udev support, which is the same lvm2 we already have in the closure anyways
-    lvm2 = pkgs.lvm2.override { udev = null; }; in pkgs.runCommandCC "extra-utils"
+  extraUtils = pkgs.runCommandCC "extra-utils"
     { nativeBuildInputs = [pkgs.buildPackages.nukeReferences];
       allowedReferences = [ "out" ]; # prevent accidents like glibc being included in the initrd
     }
@@ -113,8 +111,8 @@ let
       copy_bin_and_libs ${pkgs.utillinux}/sbin/blkid
 
       # Copy dmsetup and lvm.
-      copy_bin_and_libs ${getBin lvm2}/bin/dmsetup
-      copy_bin_and_libs ${getBin lvm2}/bin/lvm
+      copy_bin_and_libs ${getBin pkgs.lvm2}/bin/dmsetup
+      copy_bin_and_libs ${getBin pkgs.lvm2}/bin/lvm
 
       # Add RAID mdadm tool.
       copy_bin_and_libs ${pkgs.mdadm}/sbin/mdadm