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/development/tools/hexio/default.nix

@@ -0,0 +1,37 @@
+{ lib, stdenv, fetchFromGitHub, pcsclite, pth, python2 }:
+
+stdenv.mkDerivation rec {
+  pname = "hexio";
+  version = "1.0-RC1";
+
+  src = fetchFromGitHub {
+    sha256 = "08jxkdi0gjsi8s793f9kdlad0a58a0xpsaayrsnpn9bpmm5cgihq";
+    rev = "version-${version}";
+    owner = "vanrein";
+    repo = "hexio";
+  };
+
+  strictDeps = true;
+
+  buildInputs = [ pcsclite pth python2 ];
+
+  patchPhase = ''
+    substituteInPlace Makefile \
+      --replace '-I/usr/local/include/PCSC/' '-I${lib.getDev pcsclite}/include/PCSC/' \
+      --replace '-L/usr/local/lib/pth' '-I${pth}/lib/'
+    '';
+
+  installPhase = ''
+    mkdir -p $out/bin $out/lib $out/sbin $out/man
+    make DESTDIR=$out PREFIX=/ all
+    make DESTDIR=$out PREFIX=/ install
+    '';
+
+  meta = with lib; {
+    description = "Low-level I/O helpers for hexadecimal, tty/serial devices and so on";
+    homepage = "https://github.com/vanrein/hexio";
+    license = licenses.bsd2;
+    platforms = platforms.linux;
+    maintainers = with maintainers; [ leenaars ];
+  };
+}