usb: f_gsi: Update remote wakeup status for high speed mode

Call usb_get_remote_wakeup_status() API when enumerated with USB
high speed to get remote wakeup supported by connected host or not
for making decision to suspend or disconnect IPA GSI channel.

Change-Id: I9970d4958af366c33b3311df72d404213b097237
Signed-off-by: Mayank Rana <mrana@codeaurora.org>