ANDROID: usb: typec: tcpm: Fixup the wait time for SNK_DISCOVERY

f694171a ("ANDROID: usb: typec: tcpm: vendor hook for timer
adjustments") incorrectly passes the hard coded value of 500ms
instead of passing the value of the timer obtained from vendor
hook. This change fixes that.

Bug: 184308605
Bug: 185515554
Bug: 190442133
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Change-Id: I678110146f460875978baa0a63010392ce9d939a