usb: dwc2: hcd: Fix GetPortStatus & SetPortFeature

usb: dwc2: hcd: Fix GetPortStatus & SetPortFeature

On Rasperry Pis without onboard USB hub the power cycle during
power connect init only disable the port but never enabled it again:

  usb usb1-port1: attempt power cycle

The port relevant part in dwc2_hcd_hub_control() is skipped in case
port_connect_status = 0 under the assumption the core is or will be soon
in device mode. But this assumption is wrong, because after ClearPortFeature
USB_PORT_FEAT_POWER the port_connect_status will also be 0 and
SetPortFeature (incl. USB_PORT_FEAT_POWER) will be a no-op.

Fix the behavior of dwc2_hcd_hub_control() by replacing the
port_connect_status check with dwc2_is_device_mode().

Link: https://github.com/raspberrypi/linux/issues/6247
Fixes: 7359d482eb4d ("staging: HCD files for the DWC2 driver")
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Link: https://lore.kernel.org/r/20241202001631.75473-3-wahrenst@gmx.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>