* Resynchronize on Debian, remaining change

* debian/control.in, debian/rules:
  - Suggests python3-pydrive, ideally that would be a recommends but
    the package needs to be promoted first
  - set -Dpydrive_pkgs=python3-pydrive this way deja-dup knows how to
    install the pydrive backend on demand via packagekit
* debian/patches/disable-google-drive.patch:
  - remove the patch disabling google drive, python3-pydrive is available
    now in Ubuntu