usb: dwc3: gadget: rename dwc3_process_event_buf

that function isn't really processing any event
buffer, rather just checking whether it contains
events to be processed.

Due to that reason, we're reaning it to dwc3_check_event_buf()
instead.
Signed-off-by: NFelipe Balbi <balbi@ti.com>

drivers/usb/dwc3/gadget.c

@@ -2499,7 +2499,7 @@ static irqreturn_t dwc3_thread_interrupt(int irq, void *_dwc)
 	return ret;
 }
 
-static irqreturn_t dwc3_process_event_buf(struct dwc3 *dwc, u32 buf)
+static irqreturn_t dwc3_check_event_buf(struct dwc3 *dwc, u32 buf)
 {
 	struct dwc3_event_buffer *evt;
 	u32 count;
@@ -2534,7 +2534,7 @@ static irqreturn_t dwc3_interrupt(int irq, void *_dwc)
 	for (i = 0; i < dwc->num_event_buffers; i++) {
 		irqreturn_t status;
 
-		status = dwc3_process_event_buf(dwc, i);
+		status = dwc3_check_event_buf(dwc, i);
 		if (status == IRQ_WAKE_THREAD)
 			ret = status;
 	}