gadget: dwc: Support remote wakeup bit in GET_STATUS command in HS-USB mode

In High-Speed mode, the remote wakeup feature is enabled by a SET_FEATURE
command sent from the host. This patch adds the logic reflect this
configuration in the device GET_STATUS command response.

Change-Id: I0c934d0330d2580f15b1307005dde7b4b7874a7d
Signed-off-by: Danny Segal <dsegal@codeaurora.org>