To stop an out endpoint, software should set sets the Global OUT NAK,
but not the Global Non-periodic IN NAK. This driver bug leads the out-ep
failed be in disabled state with below error.

dwc2_hsotg_ep_stop_xfr: timeout DOEPCTL.EPDisable
Acked-by: NJohn Youn <johnyoun@synopsys.com>
Signed-off-by: NDu, Changbin <changbin.du@intel.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>