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/shellFor/default.nix

@@ -0,0 +1,47 @@
+{ lib, writeText, haskellPackages, cabal-install }:
+
+(haskellPackages.shellFor {
+  packages = p: [ p.constraints p.linear ];
+  extraDependencies = p: { libraryHaskellDepends = [ p.releaser ]; };
+  nativeBuildInputs = [ cabal-install ];
+  phases = [ "unpackPhase" "buildPhase" "installPhase" ];
+  unpackPhase = ''
+    sourceRoot=$(pwd)/scratch
+    mkdir -p "$sourceRoot"
+    cd "$sourceRoot"
+    tar -xf ${haskellPackages.constraints.src}
+    tar -xf ${haskellPackages.linear.src}
+    cp ${writeText "cabal.project" "packages: constraints* linear*"} cabal.project
+  '';
+  buildPhase = ''
+    export HOME=$(mktemp -d)
+    mkdir -p $HOME/.cabal
+    touch $HOME/.cabal/config
+
+    # Check extraDependencies.libraryHaskellDepends arg
+    ghci <<EOF
+    :m + Releaser.Primitives
+    :m + System.IO
+    writeFile "done" "done"
+    EOF
+    [[ done == $(cat done) ]]
+
+    # Check packages arg
+    cabal v2-build --offline --verbose constraints linear --ghc-options="-O0 -j$NIX_BUILD_CORES"
+  '';
+  installPhase = ''
+    touch $out
+  '';
+}).overrideAttrs (oldAttrs: {
+  meta =
+    let
+      oldMeta = oldAttrs.meta or {};
+      oldMaintainers = oldMeta.maintainers or [];
+      additionalMaintainers = with lib.maintainers; [ cdepillabout ];
+      allMaintainers = oldMaintainers ++ additionalMaintainers;
+    in
+    oldMeta // {
+      maintainers = allMaintainers;
+      inherit (cabal-install.meta) platforms;
+    };
+})