usb: musb-new: CONFIG_MUSB prefix replacement with CONFIG_USB_MUSB

USB-related options are usually prefixed with CONFIG_USB and platform-specific
adaptation for the MUSB controller already have a CONFIG_USB_MUSB prefix, so
this switches all MUSB-related options to a CONFIG_USB_MUSB prefix, for
consistency.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
diff --git a/include/configs/kwb.h b/include/configs/kwb.h
index acff5b9..96f2e9d 100644
--- a/include/configs/kwb.h
+++ b/include/configs/kwb.h
@@ -116,20 +116,20 @@
 /* USB configuration */
 #define CONFIG_USB_MUSB_DSPS
 #define CONFIG_ARCH_MISC_INIT
-#define CONFIG_MUSB_PIO_ONLY
-#define CONFIG_MUSB_DISABLE_BULK_COMBINE_SPLIT
+#define CONFIG_USB_MUSB_PIO_ONLY
+#define CONFIG_USB_MUSB_DISABLE_BULK_COMBINE_SPLIT
 /* attention! not only for gadget, enables also highspeed in hostmode */
 #define CONFIG_USB_GADGET_DUALSPEED
-#define CONFIG_MUSB_HOST
+#define CONFIG_USB_MUSB_HOST
 #define CONFIG_AM335X_USB0
 #define CONFIG_AM335X_USB0_MODE	MUSB_HOST
 #define CONFIG_AM335X_USB1
 #define CONFIG_AM335X_USB1_MODE	MUSB_HOST
 
-#ifdef CONFIG_MUSB_HOST
+#ifdef CONFIG_USB_MUSB_HOST
 #define CONFIG_CMD_USB
 #define CONFIG_USB_STORAGE
-#endif /* CONFIG_MUSB_HOST */
+#endif /* CONFIG_USB_MUSB_HOST */
 
 #undef CONFIG_ENV_IS_NOWHERE
 #define CONFIG_ENV_IS_IN_MMC