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/os-specific/linux/edac-utils/default.nix

@@ -0,0 +1,38 @@
+{ lib, stdenv, fetchFromGitHub, perl, makeWrapper
+, sysfsutils, dmidecode, kmod }:
+
+stdenv.mkDerivation {
+  pname = "edac-utils";
+  version = "unstable-2015-01-07";
+
+  src = fetchFromGitHub {
+    owner = "grondo";
+    repo = "edac-utils";
+    rev = "f9aa96205f610de39a79ff43c7478b7ef02e3138";
+    sha256 = "1dmfqb15ffldl5zirbmwiqzpxbcc2ny9rpfvxcfvpmh5b69knvdg";
+  };
+
+  nativeBuildInputs = [ perl makeWrapper ];
+  buildInputs = [ sysfsutils ];
+
+  configureFlags = [
+    "--sysconfdir=/etc"
+    "--localstatedir=/var"
+  ];
+
+  installFlags = [
+    "sysconfdir=\${out}/etc"
+  ];
+
+  postInstall = ''
+    wrapProgram "$out/sbin/edac-ctl" \
+      --set PATH ${lib.makeBinPath [ dmidecode kmod ]}
+  '';
+
+  meta = with lib; {
+    homepage = "https://github.com/grondo/edac-utils";
+    description = "Handles the reporting of hardware-related memory errors";
+    license = licenses.gpl2;
+    platforms = platforms.linux;
+  };
+}