Rename SPL_MUSB_NEW_SUPPORT to SPL_MUSB_NEW

Rename this option so that CONFIG_IS_ENABLED can be used with it.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/Makefile b/drivers/Makefile
index 10d28f4..7225561 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -53,7 +53,7 @@
 obj-$(CONFIG_SPL_ETH) += net/
 obj-$(CONFIG_SPL_ETH) += net/phy/
 obj-$(CONFIG_SPL_USB_ETHER) += net/phy/
-obj-$(CONFIG_SPL_MUSB_NEW_SUPPORT) += usb/musb-new/
+obj-$(CONFIG_SPL_MUSB_NEW) += usb/musb-new/
 obj-$(CONFIG_SPL_USB_GADGET) += usb/gadget/
 obj-$(CONFIG_SPL_USB_GADGET) += usb/common/
 obj-$(CONFIG_SPL_USB_GADGET) += usb/gadget/udc/