global: Migrate CONFIG_WATCHDOG_PRESC et al to CFG

Perform simple renames of:
   CONFIG_WATCHDOG_PRESC to CFG_WATCHDOG_PRESC
   CONFIG_WATCHDOG_RC to CFG_WATCHDOG_RC

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/include/configs/kmcent2.h b/include/configs/kmcent2.h
index 58dff49..60fea59 100644
--- a/include/configs/kmcent2.h
+++ b/include/configs/kmcent2.h
@@ -364,8 +364,8 @@
 /*
  * Hardware Watchdog
  */
-#define CONFIG_WATCHDOG_PRESC 34	/* wdog prescaler 2^(64-34) ~10min */
-#define CONFIG_WATCHDOG_RC WRC_CHIP	/* reset chip on watchdog event */
+#define CFG_WATCHDOG_PRESC 34	/* wdog prescaler 2^(64-34) ~10min */
+#define CFG_WATCHDOG_RC WRC_CHIP	/* reset chip on watchdog event */
 
 /*
  * For booting Linux, the board info and command line data