usb: mv_udc: Rename to ci_udc

The mv_udc is not marvell-specific anymore. The mv_udc is used to drive
generic ChipIdea CI13xxx series OTG cores, so rename the driver to ci_udc
instead.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Eric Nelson <eric.nelson@boundarydevices.com>
Cc: Stefano Babic <sbabic@denx.de>
diff --git a/board/boundary/nitrogen6x/nitrogen6x.c b/board/boundary/nitrogen6x/nitrogen6x.c
index 3f4cfa1..d9c05b0 100644
--- a/board/boundary/nitrogen6x/nitrogen6x.c
+++ b/board/boundary/nitrogen6x/nitrogen6x.c
@@ -389,7 +389,7 @@
 	}
 #endif
 
-#ifdef CONFIG_MV_UDC
+#ifdef CONFIG_CI_UDC
 	/* For otg ethernet*/
 	usb_eth_initialize(bis);
 #endif