usb: dwc3: Remove BIT(x) macro from DWC3's gadget code

The BIT() macro is used only in those places, so it is reasonable to
replace it by a constant value.

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index c5debf7..5288a18 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -392,7 +392,7 @@
 	unsigned int		count;
 	unsigned int		flags;
 
-#define DWC3_EVENT_PENDING	BIT(0)
+#define DWC3_EVENT_PENDING	(1UL << 0)
 
 	dma_addr_t		dma;