[Patch v2] usb: dwc3: document usb_psy in struct dwc3

The new struct member was added to struct dwc3, but
a documentation was missing:

drivers/usb/dwc3/core.h:1273: warning: Function parameter or member 'usb_psy' not described in 'dwc3'

Signed-off-by: Ray Chi <redacted>
Reported-by: Stephen Rothwell <redacted>
---
Changelog since v1:
(reported-by Stephen Rothwell [off-list ref])
- added Reported-by line.

 drivers/usb/dwc3/core.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index 6708fdf358b3..ce6bd84e2b39 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h

@@ -988,6 +988,7 @@ struct dwc3_scratchpad_array {
  * @role_sw: usb_role_switch handle
  * @role_switch_default_mode: default operation mode of controller while
  *			usb role is USB_ROLE_NONE.
+ * @usb_psy: pointer to power supply interface.
  * @usb2_phy: pointer to USB2 PHY
  * @usb3_phy: pointer to USB3 PHY
  * @usb2_generic_phy: pointer to USB2 PHY

-- 
2.30.1.766.gb4fecdf3b7-goog