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/applications/misc/keylight-controller-mschneider82/default.nix

@@ -0,0 +1,53 @@
+{ buildGoModule, fetchFromGitHub, lib, libGL, nssmdns, pkg-config, xorg }:
+
+buildGoModule rec {
+  pname = "keylight-controller-mschneider82";
+  version = "0.1.0";
+
+  src = fetchFromGitHub {
+    owner = "mschneider82";
+    repo = "keylight-control";
+    rev = "v${version}";
+    sha256 = "sha256-UZfbGihCgFBQE1oExuzCexoNgpVGwNoA9orjZ9fh4gA=";
+  };
+
+  vendorSha256 = "sha256-nFttVJbEAAGsrAglMphuw0wJ2Kf8sWB4HrpVqfHO76o=";
+
+  nativeBuildInputs = [
+    pkg-config
+  ];
+
+  buildInputs = [
+    libGL
+    nssmdns
+  ] ++ (with xorg; [
+    libX11
+    libX11.dev
+    libXcursor
+    libXext
+    libXi
+    libXinerama
+    libXrandr
+    libXxf86vm
+    xinput
+  ]);
+
+  meta = with lib; {
+    description = "A desktop application to control Elgato Keylights";
+    longDescription = ''
+      Requires having:
+      * Elgato's Keylight paired to local wifi network.
+      * Service avahi with nssmdns enabled.
+    '';
+    license = licenses.mit;
+    homepage = "https://github.com/mschneider82/keylight-control";
+    maintainers = with maintainers; [ superherointj ];
+  };
+}
+
+# Note: Application errors on first executions but works on re-runs.
+
+# Troubleshooting
+# 1. Keylight lists at: `avahi-browse --all --resolve --ignore-local`
+# 2. Ping Keylight's IP
+# 3. Resolve Keylight's hostname: `getent hosts elgato-key-light-XXXX.local`