[PATCH 1/7] usb: dwc2: Add defines to support the s3c-hsotg driver

From: Dinh Nguyen <dinguyen@xxxxxxxxxx>

In preparation of combining the dwc2/s3c-hsotg driver in a single DRD driver,
the defines in dwc2/hw.h needs to get updated so that the s3c-hsotg driver can
use them.