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/kontron-sl-mx8mm.h b/include/configs/kontron-sl-mx8mm.h
index d80238b..eee3d2d 100644
--- a/include/configs/kontron-sl-mx8mm.h
+++ b/include/configs/kontron-sl-mx8mm.h
@@ -25,8 +25,8 @@
 /* Board and environment settings */
 
 #ifdef CONFIG_USB_EHCI_HCD
-#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
 #endif
 
 /* GUID for capsule updatable firmware image */