netbsd.compat: fix build on darwin

The makefile requires GNU objcopy

Changed files
+2
pkgs
os-specific
bsd
netbsd
+2
pkgs/os-specific/bsd/netbsd/default.nix
···
bsdSetupHook netbsdSetupHook
makeMinimal
rsync
+
] ++ lib.optionals stdenv.buildPlatform.isDarwin [
+
buildPackages.binutils
];
buildInputs = with self; commonDeps;