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/tools/security/gotestwaf/default.nix

@@ -0,0 +1,30 @@
+{ lib
+, buildGoModule
+, fetchFromGitHub
+}:
+
+buildGoModule rec {
+  pname = "gotestwaf";
+  version = "0.3.1";
+
+  src = fetchFromGitHub {
+    owner = "wallarm";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "0c627bxx0mlxhc1fsd2k3x1lm5855pl215m88la662d70559z6k8";
+  };
+
+  vendorSha256 = null;
+
+  postFixup = ''
+    # Rename binary
+    mv $out/bin/cmd $out/bin/${pname}
+  '';
+
+  meta = with lib; {
+    description = "Tool for API and OWASP attack simulation";
+    homepage = "https://github.com/wallarm/gotestwaf";
+    license = licenses.mit;
+    maintainers = with maintainers; [ fab ];
+  };
+}