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/development/libraries/kdiagram/default.nix

@@ -0,0 +1,25 @@
+{
+  mkDerivation, fetchFromGitLab, lib,
+  extra-cmake-modules, qttools,
+  qtbase, qtsvg,
+}:
+
+mkDerivation rec {
+  pname = "kdiagram";
+  version = "2.8.0";
+  src = fetchFromGitLab {
+    domain = "invent.kde.org";
+    owner = "graphics";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-Se131GZE12wqdfN/V4id1pphUvteSrmMaKZ0+lqg1z8=";
+  };
+  nativeBuildInputs = [ extra-cmake-modules qttools ];
+  propagatedBuildInputs = [ qtbase qtsvg ];
+  meta = {
+    description = "Libraries for creating business diagrams";
+    license = lib.licenses.gpl2;
+    platforms = qtbase.meta.platforms;
+    maintainers = [ lib.maintainers.ttuegel ];
+  };
+}