dwc3-msm: Check EUD based spoof disconnect state on resume

Resuming from system suspend after handling EUD based spoof disconnect,
USB enumeration is not supposed to start until EUD based spoof connect
is notified. Hence check EUD based spoof disconnect flag before updating
vbus_active.

Also log important USB inputs state with dwc3_ext_event_notify() API
using dbg_log_string() instead of dev_dbg().

Change-Id: Iaf3ff08521248d0d59867d4dbcfdabc24d382bae
Signed-off-by: Mayank Rana <mrana@codeaurora.org>