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/sslmate/default.nix

@@ -0,0 +1,34 @@
+{ lib, stdenv, fetchurl, perlPackages, makeWrapper, openssl }:
+
+stdenv.mkDerivation rec {
+  pname = "sslmate";
+  version = "1.9.0";
+
+  src = fetchurl {
+    url = "https://packages.sslmate.com/other/${pname}-${version}.tar.gz";
+    sha256 = "sha256-PkASJIRJH1kXjegOFMz36QzqT+qUBWslx/iavjFoW5g=";
+  };
+
+  makeFlags = [ "PREFIX=$(out)" ];
+
+  nativeBuildInputs = [ makeWrapper ];
+  buildInputs = [ perlPackages.perl ];
+
+  postInstall = ''
+    wrapProgram $out/bin/sslmate --prefix PERL5LIB : \
+      "${with perlPackages; makePerlPath [
+        URI
+        JSONPP
+        TermReadKey
+      ]}" \
+      --prefix PATH : "${openssl.bin}/bin"
+  '';
+
+  meta = with lib; {
+    homepage = "https://sslmate.com";
+    maintainers = [ maintainers.domenkozar ];
+    description = "Easy to buy, deploy, and manage your SSL certs";
+    platforms = platforms.unix;
+    license = licenses.mit; # X11
+  };
+}