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/hp2p/default.nix

@@ -0,0 +1,38 @@
+{ lib, stdenv, fetchFromGitHub, mpi, python3Packages, autoconf, automake } :
+
+stdenv.mkDerivation rec {
+  pname = "hp2p";
+  version = "3.3";
+
+  src = fetchFromGitHub {
+    owner = "cea-hpc";
+    repo = "hp2p";
+    rev = version;
+    sha256 = "0zvlwb941rlp3vrf9yzv7njgpj3mh4671ch7qvxfa4hq2ivd52br";
+  };
+
+  patches = [ ./python3.patch ];
+  enableParallelBuilding = true;
+  nativeBuildInputs = [ autoconf automake python3Packages.wrapPython ];
+  buildInputs = [ mpi ] ++ (with python3Packages; [ python numpy matplotlib plotly mpldatacursor ]) ;
+  pythonPath = (with python3Packages; [ numpy matplotlib plotly mpldatacursor ]) ;
+
+  preConfigure = ''
+    patchShebangs autogen.sh
+    ./autogen.sh
+    export CC=mpicc
+    export CXX=mpic++
+  '';
+
+  postInstall = ''
+    wrapPythonPrograms
+  '';
+
+  meta = with lib; {
+    description = "A MPI based benchmark for network diagnostics";
+    homepage = "https://github.com/cea-hpc/hp2p";
+    platforms = platforms.unix;
+    license = licenses.cecill-c;
+    maintainers = [ maintainers.bzizou ];
+  };
+}