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/libraries/libksi/default.nix

@@ -0,0 +1,28 @@
+{ lib, stdenv, fetchFromGitHub, autoreconfHook, openssl, curl }:
+
+stdenv.mkDerivation rec {
+  pname = "libksi";
+  version = "3.20.3025";
+
+  src = fetchFromGitHub {
+    owner = "Guardtime";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "0cagysr8j92r6g7f0mwrlkpn9xz9ncz2v3jymh47j3ljxmfbagpz";
+  };
+
+  nativeBuildInputs = [ autoreconfHook ];
+  buildInputs = [ openssl curl ];
+
+  configureFlags = [
+    "--with-openssl=${openssl.dev}"
+    "--with-cafile=/etc/ssl/certs/ca-certificates.crt"
+  ];
+
+  meta = with lib; {
+    homepage = "https://github.com/GuardTime/libksi";
+    description = "Keyless Signature Infrastructure API library";
+    license = licenses.asl20;
+    platforms = platforms.all;
+  };
+}