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/lightum/default.nix

@@ -0,0 +1,41 @@
+{ lib, stdenv, fetchFromGitHub, libX11, libXScrnSaver, libXext, glib, dbus, pkg-config, systemd }:
+
+stdenv.mkDerivation {
+  pname = "lightum";
+  version = "unstable-2014-06-07";
+
+  src = fetchFromGitHub {
+    owner = "poliva";
+    repo = "lightum";
+    rev = "123e6babe0669b23d4c1dfa5511088608ff2baa8";
+    sha256 = "sha256-dzWUVY2srgk6BM6jZ7FF+snxnPopz3fx9nq+mVkmogc=";
+  };
+
+  buildInputs = [
+    dbus
+    glib
+    libX11
+    libXScrnSaver
+    libXext
+    pkg-config
+    systemd
+  ];
+
+  patchPhase = ''
+    substituteInPlace Makefile \
+      --replace "libsystemd-login" "libsystemd"
+  '';
+
+  installPhase = ''
+    make install prefix=$out bindir=$out/bin docdir=$out/share/doc \
+      mandir=$out/share/man INSTALL="install -c" INSTALLDATA="install -c -m 644"
+  '';
+
+  meta = {
+    description = "MacBook automatic light sensor daemon";
+    homepage = "https://github.com/poliva/lightum";
+    license = lib.licenses.gpl2;
+    maintainers = with lib.maintainers; [ puffnfresh ];
+    platforms = lib.platforms.linux;
+  };
+}