usb: dwc3: Fix dwc3 version and revisions in remote wakeup path

Currently inorder to issue remote wakup to host, we perform some
register operations which are needed only for DWC3_IP versions
>= 194A, but we do perform operations for DWC31_IP controllers as
well, which is not expected. Hence cleanup the IP and revisions
of DWC3 in remote wakup path.

Change-Id: Idede7b05b1fb53fe582c6e2d7483784d578a9738
Signed-off-by: Prashanth K <quic_prashk@quicinc.com>