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/nmap-formatter/default.nix

@@ -0,0 +1,31 @@
+{ lib
+, buildGoModule
+, fetchFromGitHub
+}:
+
+buildGoModule rec {
+  pname = "nmap-formatter";
+  version = "0.3.0";
+
+  src = fetchFromGitHub {
+    owner = "vdjagilev";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-tG91Cutk+RCBPv4Rf8CVnZa5Wh8qgsxEL0C6WIoEdsw=";
+  };
+
+  vendorSha256 = "sha256-WXX1b8fPcwIE40w+Kzd7ZuSRXPiYtolRXC/Z8Kc9H2s=";
+
+  postPatch = ''
+    # Fix hard-coded release
+    substituteInPlace cmd/root.go \
+      --replace "0.2.0" "${version}"
+  '';
+
+  meta = with lib; {
+    description = "Tool that allows you to convert nmap output";
+    homepage = "https://github.com/vdjagilev/nmap-formatter";
+    license = licenses.mit;
+    maintainers = with maintainers; [ fab ];
+  };
+}