hackage2nix: configure default overrides to fix amazonka builds
hackage2nix: configure default overrides to fix amazonka builds

Also, update monad-control to the latest version.

jb55/cabal2nix,bennofs/cabal2nix,dmalikov/cabal2nix,Fuuzetsu/cabal2nix,gridaphobe/cabal2nix,psibi/cabal2nix,spencerjanssen/cabal2nix