UPSTREAM: usb: dwc3: gadget: Delay issuing End Transfer

If the controller hasn't DMA'ed the Setup data from its fifo, it won't
process the End Transfer command. Polling for the command completion may
block the driver from servicing the Setup phase and cause a timeout.
Previously we only check and delay issuing End Transfer in the case of
endpoint dequeue. Let's do that for all End Transfer scenarios.

Signed-off-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/2fcf3b5d90068d549589a57a27a79f76c6769b04.1650593829.git.Thinh.Nguyen@synopsys.com


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

(cherry picked from commit f66eef8f)

Bug: 263189538
Change-Id: I58dc40ff7defdd03f52da900ee0b179ffe55d2cc
Signed-off-by: Krishna Kurapati <quic_kriskura@quicinc.com>