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/kde/akonadi-calendar-tools.nix

@@ -0,0 +1,24 @@
+{ mkDerivation
+, lib
+, extra-cmake-modules
+, kdoctools
+, akonadi
+, calendarsupport
+}:
+
+mkDerivation {
+  pname = "akonadi-calendar-tools";
+  meta = {
+    homepage = "https://github.com/KDE/akonadi-calendar-tools";
+    description = "Console applications and utilities for managing calendars in Akonadi";
+    license = with lib.licenses; [ gpl2Plus cc0 ];
+    maintainers = with lib.maintainers; [ kennyballou ];
+    platforms = lib.platforms.linux;
+  };
+  nativeBuildInputs = [ extra-cmake-modules kdoctools ];
+  propagatedBuildInputs = [
+    akonadi
+    calendarsupport
+  ];
+  outputs = [ "out" "dev" ];
+}