uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/tools/virtualization/nixos-container/default.nix

@@ -0,0 +1,37 @@
+{ substituteAll
+, perl
+, shadow
+, util-linux
+, configurationDirectory ? "/etc/nixos-containers"
+, stateDirectory ? "/var/lib/nixos-containers"
+, nixosTests
+}:
+
+substituteAll {
+    name = "nixos-container";
+    dir = "bin";
+    isExecutable = true;
+    src = ./nixos-container.pl;
+    perl = perl.withPackages (p: [ p.FileSlurp ]);
+    su = "${shadow.su}/bin/su";
+    utillinux = util-linux;
+
+    inherit configurationDirectory stateDirectory;
+
+    passthru = {
+      tests = {
+        inherit (nixosTests)
+          containers-imperative
+          containers-ip
+          containers-tmpfs
+          containers-ephemeral
+          ;
+      };
+    };
+
+    postInstall = ''
+      t=$out/share/bash-completion/completions
+      mkdir -p $t
+      cp ${./nixos-container-completion.sh} $t/nixos-container
+    '';
+}