global: Migrate CONFIG_MAX_RAM_BANK_SIZE to CFG

Perform a simple rename of CONFIG_MAX_RAM_BANK_SIZE to CFG_MAX_RAM_BANK_SIZE

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/include/configs/am43xx_evm.h b/include/configs/am43xx_evm.h
index 3a6ffd9..f43e00e 100644
--- a/include/configs/am43xx_evm.h
+++ b/include/configs/am43xx_evm.h
@@ -8,7 +8,7 @@
 #ifndef __CONFIG_AM43XX_EVM_H
 #define __CONFIG_AM43XX_EVM_H
 
-#define CONFIG_MAX_RAM_BANK_SIZE	(1024 << 21)	/* 2GB */
+#define CFG_MAX_RAM_BANK_SIZE	(1024 << 21)	/* 2GB */
 #define CFG_SYS_TIMERBASE		0x48040000	/* Use Timer2 */
 
 #include <asm/arch/omap.h>