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/misc/screensavers/i3lock-pixeled/default.nix

@@ -0,0 +1,40 @@
+{ lib, stdenv, i3lock, imagemagick, scrot, playerctl, fetchFromGitLab }:
+
+stdenv.mkDerivation rec {
+  pname = "i3lock-pixeled";
+  version = "1.2.1";
+
+  src = fetchFromGitLab {
+    owner = "Ma27";
+    repo = "i3lock-pixeled";
+    rev = version;
+    sha256 = "1l9yjf9say0mcqnnjkyj4z3f6y83bnx4jsycd1h10p3m8afbh8my";
+  };
+
+  propagatedBuildInputs = [
+    i3lock
+    imagemagick
+    scrot
+    playerctl
+  ];
+
+  makeFlags = [
+    "PREFIX=$(out)/bin"
+  ];
+
+  patchPhase = ''
+    substituteInPlace i3lock-pixeled \
+       --replace i3lock    "${i3lock}/bin/i3lock" \
+       --replace convert   "${imagemagick}/bin/convert" \
+       --replace scrot     "${scrot}/bin/scrot" \
+       --replace playerctl "${playerctl}/bin/playerctl"
+  '';
+
+  meta = with lib; {
+    description = "Simple i3lock helper which pixels a screenshot by scaling it down and up to get a pixeled version of the screen when the lock is active";
+    homepage = "https://gitlab.com/Ma27/i3lock-pixeled";
+    license = licenses.mit;
+    platforms = platforms.linux;
+    maintainers = with maintainers; [ ma27 ];
+  };
+}