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/writers/default.nix

@@ -0,0 +1,26 @@
+# Wrap only the haskell-related tests from tests.writers
+# in their own derivation for Hydra CI in the haskell-updates
+# jobset. Can presumably removed as soon as tests.writers is
+# always green on darwin as well:
+# https://github.com/NixOS/nixpkgs/issues/126182
+{ runCommand, tests }:
+
+let
+  inherit (tests.writers)
+    writeTest
+    bin
+    simple
+    path
+    ;
+in
+
+runCommand "test-haskell-writers" {
+  meta = {
+    inherit (tests.writers.meta) platforms;
+  };
+} ''
+  ${writeTest "success" "test-haskell-bin-writer" "${bin.haskell}/bin/${bin.haskell.name}"}
+  ${writeTest "success" "test-haskell-simple-writer" simple.haskell}
+  ${writeTest "success" "test-haskell-path-writer" path.haskell}
+  touch $out
+''