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/test/haskell/documentationTarball/default.nix

@@ -0,0 +1,21 @@
+{ pkgs, haskellPackages }:
+
+let
+  drv = haskellPackages.vector;
+  docs = pkgs.haskell.lib.compose.documentationTarball drv;
+
+in pkgs.runCommand "test haskell.lib.compose.documentationTarball" {
+  meta = {
+    inherit (docs.meta) platforms;
+  };
+} ''
+  tar xvzf "${docs}/${drv.name}-docs.tar.gz"
+
+  # Check for Haddock html
+  find "${drv.name}-docs" | grep -q "Data-Vector.html"
+
+  # Check for source html
+  find "${drv.name}-docs" | grep -q  "src/Data.Vector.html"
+
+  touch "$out"
+''