- re-enable console suspend, which seems to be broken with elogind when
  suspending (kernel gets hung up indefinitely in vt_waitactive)

- add a suspend hook to work around the musb driver not allowing the
  device to suspend

Based on my testing, this option seems to prevent suspending via
elogind (using `loginctl suspend`). When console suspend is disabled,
the kernel gets hung up in the call to vt_waitactive, and elogind times
out trying to suspend.