rename CFG_ENV_IS_IN_EEPROM in CONFIG_ENV_IS_IN_EEPROM

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/include/configs/PPChameleonEVB.h b/include/configs/PPChameleonEVB.h
index cf98324..a33bc3b 100644
--- a/include/configs/PPChameleonEVB.h
+++ b/include/configs/PPChameleonEVB.h
@@ -417,7 +417,7 @@
  */
 #ifdef ENVIRONMENT_IN_EEPROM
 
-#define CFG_ENV_IS_IN_EEPROM	1	/* use EEPROM for environment vars */
+#define CONFIG_ENV_IS_IN_EEPROM	1	/* use EEPROM for environment vars */
 #define CFG_ENV_OFFSET		0x100	/* environment starts at the beginning of the EEPROM */
 #define CFG_ENV_SIZE		0x700	/* 2048-256 bytes may be used for env vars (total size of a CAT24WC16 is 2048 bytes)*/