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/networking/cluster/helm/chart-testing/default.nix

@@ -0,0 +1,48 @@
+{ lib, buildGoModule, fetchFromGitHub, installShellFiles }:
+
+buildGoModule rec {
+  pname = "chart-testing";
+  version = "3.5.1";
+
+  src = fetchFromGitHub {
+    owner = "helm";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-LNCzz5me60R/moFfdJhGMgUToFxADiPL02G4QCv0DLg=";
+  };
+
+  vendorSha256 = "sha256-38ufXHzGlZgEh6swD/GhWbIYdY5uYznKCQ9OaoyOEiY=";
+
+  postPatch = ''
+    substituteInPlace pkg/config/config.go \
+      --replace "\"/etc/ct\"," "\"$out/etc/ct\","
+  '';
+
+  ldflags = [
+    "-w"
+    "-s"
+    "-X github.com/helm/chart-testing/v3/ct/cmd.Version=${version}"
+    "-X github.com/helm/chart-testing/v3/ct/cmd.GitCommit=${src.rev}"
+    "-X github.com/helm/chart-testing/v3/ct/cmd.BuildDate=19700101-00:00:00"
+  ];
+
+  nativeBuildInputs = [ installShellFiles ];
+
+  postInstall = ''
+    install -Dm644 -t $out/etc/ct etc/chart_schema.yaml
+    install -Dm644 -t $out/etc/ct etc/lintconf.yaml
+
+    installShellCompletion --cmd ct \
+      --bash <($out/bin/ct completion bash) \
+      --zsh <($out/bin/ct completion zsh) \
+      --fish <($out/bin/ct completion fish) \
+  '';
+
+  meta = with lib; {
+    description = "A tool for testing Helm charts";
+    homepage = "https://github.com/helm/chart-testing";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ atkinschang ];
+    mainProgram = "ct";
+  };
+}