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/librelp/default.nix

@@ -0,0 +1,29 @@
+{ lib, stdenv, fetchFromGitHub
+, autoreconfHook
+, gnutls
+, openssl
+, pkg-config
+, zlib
+}:
+
+stdenv.mkDerivation rec {
+  pname = "librelp";
+  version = "1.10.0";
+
+  src = fetchFromGitHub {
+    owner = "rsyslog";
+    repo = "librelp";
+    rev = "v${version}";
+    sha256 = "sha256-aJLsUtik5aXfsdi+8QoDgbi4VUZ8gV3YPA6kIY6wzs4=";
+  };
+
+  nativeBuildInputs = [ pkg-config autoreconfHook ];
+  buildInputs = [ gnutls zlib openssl ];
+
+  meta = with lib; {
+    description = "A reliable logging library";
+    homepage = "https://www.librelp.com/";
+    license = licenses.gpl2;
+    platforms = platforms.linux;
+  };
+}