UPSTREAM: usb: dwc3: Avoid unmapping USB requests if endxfer is not complete

If DWC3_EP_DELAYED_STOP is set during stop active transfers, then do not
continue attempting to unmap request buffers during dwc3_remove_requests().
This can lead to SMMU faults, as the controller has not stopped the
processing of the TRB.  Defer this sequence to the EP0 out start, which
ensures that there are no pending SETUP transactions before issuing the
endxfer.

Reviewed-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com>
Link: https://lore.kernel.org/r/20220901193625.8727-2-quic_wcheng@quicinc.com


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

(cherry picked from commit 2b2da657)

Bug: 263189538
Change-Id: I01ba6d79b56211316bfa492ae4d5d41680067c9e
Signed-off-by: Krishna Kurapati <quic_kriskura@quicinc.com>