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/raft-canonical/default.nix

@@ -0,0 +1,43 @@
+{ lib, stdenv, fetchFromGitHub, autoreconfHook, pkg-config, file, libuv, lz4 }:
+
+stdenv.mkDerivation rec {
+  pname = "raft-canonical";
+  version = "0.11.2";
+
+  src = fetchFromGitHub {
+    owner = "canonical";
+    repo = "raft";
+    rev = "v${version}";
+    sha256 = "050dwy34jh8dihfwfm0r1by2i3sy9crapipp9idw32idm79y4izb";
+  };
+
+  nativeBuildInputs = [ autoreconfHook file pkg-config ];
+  buildInputs = [ libuv lz4 ];
+
+  enableParallelBuilding = true;
+
+  preConfigure = ''
+    substituteInPlace configure --replace /usr/bin/ " "
+  '';
+
+  doCheck = true;
+
+  outputs = [ "dev" "out" ];
+
+  meta = with lib; {
+    description = ''
+      Fully asynchronous C implementation of the Raft consensus protocol
+    '';
+    longDescription = ''
+      The library has modular design: its core part implements only the core
+      Raft algorithm logic, in a fully platform independent way. On top of
+      that, a pluggable interface defines the I/O implementation for networking
+      (send/receive RPC messages) and disk persistence (store log entries and
+      snapshots).
+    '';
+    homepage = "https://github.com/canonical/raft";
+    license = licenses.asl20;
+    platforms = platforms.linux;
+    maintainers = with maintainers; [ wucke13 ];
+  };
+}