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/networking/sockperf/default.nix

@@ -0,0 +1,32 @@
+{ lib, stdenv, fetchFromGitHub, autoreconfHook, doxygen
+, enableTool ? false
+, enableTest ? false }:
+
+stdenv.mkDerivation rec {
+  pname = "sockperf";
+  version = "3.8";
+
+  src = fetchFromGitHub {
+    owner = "Mellanox";
+    repo = "sockperf";
+    rev = version;
+    sha256 = "sha256-S5ZSGctOOnMD+AqlSAkRHMW8O1Rt8/952fali0kv/EU=";
+  };
+
+  nativeBuildInputs = [ autoreconfHook doxygen ];
+
+  configureFlags = [ "--enable-doc" ]
+    ++ lib.optional enableTest "--enable-test"
+    ++ lib.optional enableTool "--enable-tool";
+
+  doCheck = true;
+
+  meta = with lib; {
+    broken = stdenv.isDarwin;
+    description = "Network Benchmarking Utility";
+    homepage = "https://github.com/Mellanox/sockperf";
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ emilytrau ];
+    platforms = platforms.all;
+  };
+}