usb: misc: nb7vpq904m: disable chip when boot up without cable

When boot up without USB cable, first UCSI_GET_CONNECTOR_STATUS command
will return all zero message,

Example UCSI IPC log:
40.319381997:   sync_write: CONTROL: 12 00 01 00 00 00 00 00
40.319507987:   read: CCI: 00 09 00 80
40.319620018:   read: MSG_IN: 00 00 00 00 00 00 00 00 00

Disable chip when connect status not set.

Change-Id: I6c91e462b10a8fc6798d95148be799706861ab46
Signed-off-by: Linyu Yuan <linyyuan@codeaurora.org>