usb: gadget: Check remote wakeup status in BAM2BAM mode

Correctly return the remote wakeup operation status to the BAM SW
from the wakeup callback.

Change-Id: Ifaaed025c6230296adbb3b43957e3a788771fdc1
Signed-off-by: Danny Segal <dsegal@codeaurora.org>
Signed-off-by: Dov Levenglick <dovl@codeaurora.org>