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/networking/openresolv/default.nix

@@ -0,0 +1,40 @@
+{ lib, stdenv, fetchurl, makeWrapper, coreutils }:
+
+stdenv.mkDerivation rec {
+  pname = "openresolv";
+  version = "3.12.0";
+
+  src = fetchurl {
+    url = "mirror://roy/openresolv/${pname}-${version}.tar.xz";
+    sha256 = "sha256-QrMFCOhXoihTXGMeqsk2hi2G7KaMFLXAvzh7oXa5G5c=";
+  };
+
+  nativeBuildInputs = [ makeWrapper ];
+
+  configurePhase =
+    ''
+      cat > config.mk <<EOF
+      PREFIX=$out
+      SYSCONFDIR=/etc
+      SBINDIR=$out/sbin
+      LIBEXECDIR=$out/libexec/resolvconf
+      VARDIR=/run/resolvconf
+      MANDIR=$out/share/man
+      RESTARTCMD=false
+      EOF
+    '';
+
+  installFlags = [ "SYSCONFDIR=$(out)/etc" ];
+
+  postInstall = ''
+    wrapProgram "$out/sbin/resolvconf" --set PATH "${coreutils}/bin"
+  '';
+
+  meta = {
+    description = "A program to manage /etc/resolv.conf";
+    homepage = "https://roy.marples.name/projects/openresolv";
+    license = lib.licenses.bsd2;
+    maintainers = [ lib.maintainers.eelco ];
+    platforms = lib.platforms.linux;
+  };
+}