rename CFG_ENV_IS_IN_FLASH in CONFIG_ENV_IS_IN_FLASH

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/include/environment.h b/include/environment.h
index 047f5f0..6fcc8ec 100644
--- a/include/environment.h
+++ b/include/environment.h
@@ -37,7 +37,7 @@
  **************************************************************************
  */
 
-#if defined(CFG_ENV_IS_IN_FLASH)
+#if defined(CONFIG_ENV_IS_IN_FLASH)
 # ifndef  CFG_ENV_ADDR
 #  define CFG_ENV_ADDR	(CFG_FLASH_BASE + CFG_ENV_OFFSET)
 # endif
@@ -67,7 +67,7 @@
 # if defined(CFG_ENV_ADDR_REDUND) || defined(CFG_ENV_OFFSET_REDUND)
 #  define CFG_REDUNDAND_ENVIRONMENT	1
 # endif
-#endif	/* CFG_ENV_IS_IN_FLASH */
+#endif	/* CONFIG_ENV_IS_IN_FLASH */
 
 #if defined(CONFIG_ENV_IS_IN_NAND)
 # ifndef CFG_ENV_OFFSET