usb: gadget: Handle function suspend feature selector

When host sends function suspend feature selector to the device,
inspect the received packet and trigger function suspend or
function resume accordingly. Inspect the remote wakeup bit and
arm the function for remote wakeup if it is wakeup capable. Also
host queries the function wakeup capability  through a get status
request before sending function resume. Handle such requests in
composite layer.

Signed-off-by: Elson Roy Serrao <quic_eserrao@quicinc.com>
Reviewed-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/1679694482-16430-6-git-send-email-quic_eserrao@quicinc.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>