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/kmscon/default.nix

@@ -0,0 +1,60 @@
+{ lib, stdenv
+, fetchFromGitHub
+, autoreconfHook
+, libtsm
+, systemd
+, libxkbcommon
+, libdrm
+, libGLU, libGL
+, pango
+, pixman
+, pkg-config
+, docbook_xsl
+, libxslt
+}:
+
+stdenv.mkDerivation rec {
+  pname = "kmscon";
+  version = "unstable-2018-09-07";
+
+  src = fetchFromGitHub {
+    owner = "Aetf";
+    repo = "kmscon";
+    rev = "01dd0a231e2125a40ceba5f59fd945ff29bf2cdc";
+    sha256 = "0q62kjsvy2iwy8adfiygx2bfwlh83rphgxbis95ycspqidg9py87";
+  };
+
+  buildInputs = [
+    libGLU libGL
+    libdrm
+    libtsm
+    libxkbcommon
+    libxslt
+    pango
+    pixman
+    systemd
+  ];
+
+  nativeBuildInputs = [
+    autoreconfHook
+    docbook_xsl
+    pkg-config
+  ];
+
+  configureFlags = [
+    "--enable-multi-seat"
+    "--disable-debug"
+    "--enable-optimizations"
+    "--with-renderers=bbulk,gltex,pixman"
+  ];
+
+  enableParallelBuilding = true;
+
+  meta = with lib; {
+    description = "KMS/DRM based System Console";
+    homepage = "http://www.freedesktop.org/wiki/Software/kmscon/";
+    license = licenses.mit;
+    maintainers = with maintainers; [ omasanori ];
+    platforms = platforms.linux;
+  };
+}