global: Migrate CONFIG_MXC_USB_FLAGS et al to CFG

Perform simple renames of:
   CONFIG_MXC_USB_FLAGS to CFG_MXC_USB_FLAGS
   CONFIG_MXC_USB_PORT to CFG_MXC_USB_PORT
   CONFIG_MXC_USB_PORTSC to CFG_MXC_USB_PORTSC

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/include/configs/kp_imx53.h b/include/configs/kp_imx53.h
index da8a67b..6e383cb 100644
--- a/include/configs/kp_imx53.h
+++ b/include/configs/kp_imx53.h
@@ -11,8 +11,8 @@
 #include <linux/sizes.h>
 
 /* USB Configs */
-#define CONFIG_MXC_USB_PORTSC	(PORT_PTS_UTMI | PORT_PTS_PTW)
-#define CONFIG_MXC_USB_FLAGS	0
+#define CFG_MXC_USB_PORTSC	(PORT_PTS_UTMI | PORT_PTS_PTW)
+#define CFG_MXC_USB_FLAGS	0
 
 /* Command definition */