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/misc/hound/default.nix

@@ -0,0 +1,38 @@
+{ lib
+, buildGoModule
+, fetchFromGitHub
+, makeWrapper
+, mercurial
+, git
+}:
+
+buildGoModule rec {
+  pname = "hound";
+  version = "0.4.0";
+
+  src = fetchFromGitHub {
+    owner = "hound-search";
+    repo = "hound";
+    rev = "v${version}";
+    sha256 = "0p5w54fr5xz19ff8k5xkyq3iqhjki8wc0hj2x1pnmk6hzrz6hf65";
+  };
+
+  vendorSha256 = "0x1nhhhvqmz3qssd2d44zaxbahj8lh9r4m5jxdvzqk6m3ly7y0b6";
+
+  nativeBuildInputs = [ makeWrapper ];
+
+  # requires network access
+  doCheck = false;
+
+  postInstall = ''
+    wrapProgram $out/bin/houndd --prefix PATH : ${lib.makeBinPath [ mercurial git ]}
+  '';
+
+  meta = with lib; {
+    inherit (src.meta) homepage;
+    description = "Lightning fast code searching made easy";
+    license = licenses.mit;
+    maintainers = with maintainers; [ grahamc SuperSandro2000 ];
+    platforms = platforms.unix;
+  };
+}