usb: chipidea: add ci->is_otg condition for otg judgement

Since some chipidea based controller is not otg capable, add ci->is_otg
condition when setting is_otg flag for gadget.
Signed-off-by: NLi Jun <jun.li@freescale.com>
Reviewed-by: NRoger Quadros <rogerq@ti.com>
Acked-by: NPeter Chen <peter.chen@freescale.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

drivers/usb/chipidea/udc.c

@@ -1838,8 +1838,8 @@ static int udc_start(struct ci_hdrc *ci)
 	ci->gadget.name         = ci->platdata->name;
 	ci->gadget.otg_caps	= otg_caps;
 
-	if (otg_caps->hnp_support || otg_caps->srp_support ||
-					otg_caps->adp_support)
+	if (ci->is_otg && (otg_caps->hnp_support || otg_caps->srp_support ||
+						otg_caps->adp_support))
 		ci->gadget.is_otg = 1;
 
 	INIT_LIST_HEAD(&ci->gadget.ep_list);