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/tools/wayland/kanshi/default.nix

@@ -0,0 +1,45 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, meson
+, ninja
+, pkg-config
+, scdoc
+, wayland
+, wayland-scanner
+}:
+
+stdenv.mkDerivation rec {
+  pname = "kanshi";
+  version = "1.2.0";
+
+  src = fetchFromGitHub {
+    owner = "emersion";
+    repo = "kanshi";
+    rev = "v${version}";
+    sha256 = "sha256-RVMeS2qEjTYK6r7IwMeFSqfRpKR8di2eQXhewfhTnYI=";
+  };
+
+  strictDeps = true;
+  depsBuildBuild = [
+    pkg-config
+  ];
+  nativeBuildInputs = [ meson ninja pkg-config scdoc wayland-scanner ];
+  buildInputs = [ wayland ];
+
+  meta = with lib; {
+    homepage = "https://github.com/emersion/kanshi";
+    description = "Dynamic display configuration tool";
+    longDescription = ''
+      kanshi allows you to define output profiles that are automatically enabled
+      and disabled on hotplug. For instance, this can be used to turn a laptop's
+      internal screen off when docked.
+
+      kanshi can be used on Wayland compositors supporting the
+      wlr-output-management protocol.
+    '';
+    license = licenses.mit;
+    maintainers = with maintainers; [ balsoft ];
+    platforms = platforms.linux;
+  };
+}