dwc3-msm: Add handling for EUD based spoof detach/attach event

This change adds required support to register extcon notifier to
receive EUD based spoof detach/attach event and handling this event.
It triggers USB state machine to stop and start USB peripheral mode.
It starts USB peripheral mode in USB high speed only as USB super
speed mode can't be activated when EUD hub is active.

Change-Id: Ia1401c86254a1a5a8e00c2b463f3857b5a02f93d
Signed-off-by: Mayank Rana <mrana@codeaurora.org>