usb: dwc3: debugfs: add two missing Link States

for Reset and Resume we were going to print
"UNKNOWN" when we actually knew what those
were.

Signed-off-by: Felipe Balbi <balbi@ti.com>
diff --git a/drivers/usb/dwc3/debugfs.c b/drivers/usb/dwc3/debugfs.c
index 4a752e7..c740c76 100644
--- a/drivers/usb/dwc3/debugfs.c
+++ b/drivers/usb/dwc3/debugfs.c
@@ -577,6 +577,12 @@
 	case DWC3_LINK_STATE_LPBK:
 		seq_printf(s, "Loopback\n");
 		break;
+	case DWC3_LINK_STATE_RESET:
+		seq_printf(s, "Reset\n");
+		break;
+	case DWC3_LINK_STATE_RESUME:
+		seq_printf(s, "Resume\n");
+		break;
 	default:
 		seq_printf(s, "UNKNOWN %d\n", reg);
 	}