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/misc/dumptorrent/default.nix

@@ -0,0 +1,29 @@
+{ lib, stdenv, fetchurl }:
+
+stdenv.mkDerivation rec {
+    pname = "dumptorrent";
+    version = "1.2";
+
+    src = fetchurl {
+      url = "mirror://sourceforge/dumptorrent/dumptorrent-${version}.tar.gz";
+      sha256 = "073h03bmpfdy15qh37lvppayld2747i4acpyk0pm5nf2raiak0zm";
+    };
+
+    patchPhase = ''
+      substituteInPlace Makefile \
+        --replace "gcc" "cc"
+    '';
+
+    installPhase = ''
+      mkdir -p $out/bin
+      cp ./dumptorrent $out/bin
+    '';
+
+    meta = with lib; {
+      description = "Dump .torrent file information";
+      homepage = "https://sourceforge.net/projects/dumptorrent/";
+      license = licenses.gpl2;
+      maintainers = [ maintainers.zohl ];
+      platforms = platforms.all;
+    };
+}