rename CFG_ENV macros to CONFIG_ENV

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/include/configs/PIP405.h b/include/configs/PIP405.h
index 7876177..895b89c 100644
--- a/include/configs/PIP405.h
+++ b/include/configs/PIP405.h
@@ -96,8 +96,8 @@
 #define CFG_I2C_EEPROM_ADDR	0x53
 #define CFG_I2C_EEPROM_ADDR_LEN	2
 #define CONFIG_ENV_IS_IN_EEPROM    1       /* use EEPROM for environment vars */
-#define CFG_ENV_OFFSET          0x000   /* environment starts at the beginning of the EEPROM */
-#define CFG_ENV_SIZE            0x800   /* 2 kBytes may be used for env vars */
+#define CONFIG_ENV_OFFSET          0x000   /* environment starts at the beginning of the EEPROM */
+#define CONFIG_ENV_SIZE            0x800   /* 2 kBytes may be used for env vars */
 
 #undef CFG_I2C_EEPROM_ADDR_OVERFLOW
 #define CFG_EEPROM_PAGE_WRITE_BITS 6	/* The Atmel 24C128/256 has	*/