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/grpc-tools/default.nix

@@ -0,0 +1,40 @@
+{ lib
+, stdenv
+, cmake
+, fetchFromGitHub
+}:
+
+stdenv.mkDerivation rec {
+  pname = "grpc-tools";
+  version = "1.11.2";
+
+  src = fetchFromGitHub {
+    owner = "grpc";
+    repo = "grpc-node";
+    rev = "grpc-tools@${version}";
+    sha256 = "00432y19pjcimwachjcqpzra21vzmlqchhhlqxnk98bfh25kxdcb";
+    fetchSubmodules = true;
+  };
+
+  sourceRoot = "source/packages/grpc-tools";
+
+  nativeBuildInputs = [ cmake ];
+
+  installPhase = ''
+    install -Dm755 -t $out/bin grpc_node_plugin
+    install -Dm755 -t $out/bin deps/protobuf/protoc
+  '';
+
+  meta = with lib; {
+    description = "Distribution of protoc and the gRPC Node protoc plugin for ease of installation with npm";
+    longDescription = ''
+      This package distributes the Protocol Buffers compiler protoc along with
+      the plugin for generating client and service objects for use with the Node
+      gRPC libraries.
+    '';
+    homepage = "https://github.com/grpc/grpc-node/tree/master/packages/grpc-tools";
+    license = licenses.asl20;
+    platforms = platforms.all;
+    maintainers = [ maintainers.nzhang-zh ];
+  };
+}