global: Finish CONFIG -> CFG migration

At this point, the remaining places where we have a symbol that is
defined as CONFIG_... are in fairly odd locations. While as much dead
code has been removed as possible, some of these locations are simply
less obvious at first. In other cases, this code is used, but was
defined in such a way as to have been missed by earlier checks.  Perform
a rename of all such remaining symbols to be CFG_... rather than
CONFIG_...

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/serial/usbtty.h b/drivers/serial/usbtty.h
index 8c7e61b..b176a79 100644
--- a/drivers/serial/usbtty.h
+++ b/drivers/serial/usbtty.h
@@ -20,17 +20,17 @@
 #include <usb/udc.h>
 #include <version.h>
 
-#ifndef CONFIG_USBD_CONFIGURATION_STR
-#define CONFIG_USBD_CONFIGURATION_STR	"TTY via USB"
+#ifndef CFG_USBD_CONFIGURATION_STR
+#define CFG_USBD_CONFIGURATION_STR	"TTY via USB"
 #endif
 
-#define CONFIG_USBD_SERIAL_OUT_ENDPOINT UDC_OUT_ENDPOINT
-#define CONFIG_USBD_SERIAL_OUT_PKTSIZE	UDC_OUT_PACKET_SIZE
-#define CONFIG_USBD_SERIAL_IN_ENDPOINT	UDC_IN_ENDPOINT
-#define CONFIG_USBD_SERIAL_IN_PKTSIZE	UDC_IN_PACKET_SIZE
-#define CONFIG_USBD_SERIAL_INT_ENDPOINT UDC_INT_ENDPOINT
-#define CONFIG_USBD_SERIAL_INT_PKTSIZE	UDC_INT_PACKET_SIZE
-#define CONFIG_USBD_SERIAL_BULK_PKTSIZE	UDC_BULK_PACKET_SIZE
+#define CFG_USBD_SERIAL_OUT_ENDPOINT UDC_OUT_ENDPOINT
+#define CFG_USBD_SERIAL_OUT_PKTSIZE	UDC_OUT_PACKET_SIZE
+#define CFG_USBD_SERIAL_IN_ENDPOINT	UDC_IN_ENDPOINT
+#define CFG_USBD_SERIAL_IN_PKTSIZE	UDC_IN_PACKET_SIZE
+#define CFG_USBD_SERIAL_INT_ENDPOINT UDC_INT_ENDPOINT
+#define CFG_USBD_SERIAL_INT_PKTSIZE	UDC_INT_PACKET_SIZE
+#define CFG_USBD_SERIAL_BULK_PKTSIZE	UDC_BULK_PACKET_SIZE
 
 #define USBTTY_DEVICE_CLASS	COMMUNICATIONS_DEVICE_CLASS