global: Migrate CONFIG_LPC32XX_NAND_SLC_WWIDTH to CFG

Perform a simple rename of CONFIG_LPC32XX_NAND_SLC_WWIDTH to CFG_LPC32XX_NAND_SLC_WWIDTH

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/include/configs/devkit3250.h b/include/configs/devkit3250.h
index 5719e42..9cfee38 100644
--- a/include/configs/devkit3250.h
+++ b/include/configs/devkit3250.h
@@ -42,7 +42,7 @@
  * NAND chip timings
  */
 #define CFG_LPC32XX_NAND_SLC_WDR_CLKS	14
-#define CONFIG_LPC32XX_NAND_SLC_WWIDTH		66666666
+#define CFG_LPC32XX_NAND_SLC_WWIDTH		66666666
 #define CFG_LPC32XX_NAND_SLC_WHOLD		200000000
 #define CFG_LPC32XX_NAND_SLC_WSETUP		50000000
 #define CFG_LPC32XX_NAND_SLC_RDR_CLKS	14