BACKPORT: UPSTREAM: usb: dwc3: gadget: Execute gadget stop after halting the controller

Do not call gadget stop until the poll for controller halt is
completed.  DEVTEN is cleared as part of gadget stop, so the intention to
allow ep0 events to continue while waiting for controller halt is not
happening.

Fixes: c9668379 ("usb: dwc3: ep0: Don't prepare beyond Setup stage")
Cc: stable@vger.kernel.org
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com>
Link: https://lore.kernel.org/r/20230420212759.29429-2-quic_wcheng@quicinc.com


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

Bug: 280741172
Bug: 277690231
[ugoswami: Modified the function dwc3_gadget_run_stop to remove dependency from cleanup patch.]
(cherry picked from commit 39674be5 usb-linus)

Change-Id: I2a8a42e938a680cefc0d1a56274caf155a4f99cd
Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com>
Signed-off-by: Udipto Goswami <quic_ugoswami@quicinc.com>
(cherry picked from commit 45902380)