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/qmk-udev-rules/default.nix

@@ -0,0 +1,33 @@
+{ lib, stdenv, fetchFromGitHub }:
+
+## Usage
+# In NixOS, simply add this package to services.udev.packages:
+#   services.udev.packages = [ pkgs.qmk-udev-rules ];
+
+stdenv.mkDerivation rec {
+  pname = "qmk-udev-rules";
+  version = "0.15.25";
+
+  src = fetchFromGitHub {
+    owner = "qmk";
+    repo = "qmk_firmware";
+    rev = version;
+    sha256 = "4U1/9DgoKZ1Al76lZ2P8x4LIvtqaJPLq81cCSCy+9iE=";
+  };
+
+  dontBuild = true;
+
+  installPhase = ''
+    runHook preInstall
+    install -D util/udev/50-qmk.rules $out/lib/udev/rules.d/50-qmk.rules
+    runHook postInstall
+  '';
+
+  meta = with lib; {
+    homepage = "https://github.com/qmk/qmk_firmware";
+    description = "Official QMK udev rules list";
+    platforms = platforms.linux;
+    license = licenses.gpl2Only;
+    maintainers = with maintainers; [ ekleog ];
+  };
+}