usb: add HAS_IOMEM dependency to USB_MUSB_HDRC

drivers/built-in.o: In function `musb_probe':
/home/vegard/linux/drivers/usb/musb/musb_core.c:2304: undefined reference to `devm_ioremap_resource'
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/musb/Kconfig

@@ -7,6 +7,7 @@
 config USB_MUSB_HDRC
 	tristate 'Inventra Highspeed Dual Role Controller (TI, ADI, AW, ...)'
 	depends on (USB || USB_GADGET)
+	depends on HAS_IOMEM
 	help
 	  Say Y here if your system has a dual role high speed USB
 	  controller based on the Mentor Graphics silicon IP.  Then