usb: dwc3: Remove DWC3 locking during gadget suspend/resume

usb: dwc3: Remove DWC3 locking during gadget suspend/resume

[ Upstream commit 5265397f94424eaea596026fd34dc7acf474dcec ]

Remove the need for making dwc3_gadget_suspend() and dwc3_gadget_resume()
to be called in a spinlock, as dwc3_gadget_run_stop() could potentially
take some time to complete.

Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com>
Link: https://lore.kernel.org/r/20220901193625.8727-3-quic_wcheng@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: c8540870af4c ("usb: dwc3: gadget: Improve dwc3_gadget_suspend() and dwc3_gadget_resume()")
Signed-off-by: Sasha Levin <sashal@kernel.org>