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/csb472.h b/include/configs/csb472.h
index d3e5ea8..4fef2f6 100644
--- a/include/configs/csb472.h
+++ b/include/configs/csb472.h
@@ -231,7 +231,7 @@
  */
 #define CFG_ENV_IS_IN_FLASH	1	/* environment is in FLASH	*/
 #undef CFG_ENV_IS_IN_NVRAM
-#undef CFG_ENV_IS_IN_EEPROM
+#undef CONFIG_ENV_IS_IN_EEPROM
 
 /*
  * General Memory organization