usb: gadget: Fix typo in obj line

When dropping the unused fotg210 gadget driver a leading 0 was
introduced to the next line, drop it.

Fixes: e9b4678bc78e ("usb: Drop unused fotg210 gadget")
Reported-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile
index b04b6bc..6cfe0f3 100644
--- a/drivers/usb/gadget/Makefile
+++ b/drivers/usb/gadget/Makefile
@@ -19,7 +19,7 @@
 obj-$(CONFIG_USB_GADGET_BCM_UDC_OTG_PHY) += bcm_udc_otg_phy.o
 obj-$(CONFIG_USB_GADGET_DWC2_OTG) += dwc2_udc_otg.o
 obj-$(CONFIG_USB_GADGET_DWC2_OTG_PHY) += dwc2_udc_otg_phy.o
-0obj-$(CONFIG_USB_GADGET_MAX3420) += max3420_udc.o
+obj-$(CONFIG_USB_GADGET_MAX3420) += max3420_udc.o
 ifndef CONFIG_SPL_BUILD
 obj-$(CONFIG_USB_GADGET_DOWNLOAD) += g_dnl.o
 obj-$(CONFIG_USB_FUNCTION_THOR) += f_thor.o