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/tools/misc/wimboot/default.nix

@@ -0,0 +1,31 @@
+{ lib, stdenv, fetchFromGitHub, libbfd, zlib, libiberty }:
+
+stdenv.mkDerivation rec {
+  pname = "wimboot";
+  version = "2.7.4";
+
+  src = fetchFromGitHub {
+    owner = "ipxe";
+    repo = "wimboot";
+    rev = "v${version}";
+    sha256 = "sha256-LaPH6nGQanweAG0niS75hr7zbO/9A3iZjS8wHD//oJ4=";
+  };
+
+  sourceRoot = "source/src";
+
+  buildInputs = [ libbfd zlib libiberty ];
+  makeFlags = [ "wimboot.x86_64.efi" ];
+
+  installPhase = ''
+    mkdir -p $out/share/wimboot/
+    cp wimboot.x86_64.efi $out/share/wimboot
+  '';
+
+  meta = with lib; {
+    homepage = "https://ipxe.org/wimboot";
+    description = "Windows Imaging Format bootloader";
+    license = licenses.gpl2Plus;
+    maintainers = with maintainers; [ das_j ajs124 ];
+    platforms = [ "x86_64-linux" ];
+  };
+}