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/board/bmw/flash.c b/board/bmw/flash.c
index 6d3cfab..4c7971a 100644
--- a/board/bmw/flash.c
+++ b/board/bmw/flash.c
@@ -31,7 +31,7 @@
 
 flash_info_t flash_info[CFG_MAX_FLASH_BANKS];	/* info for FLASH chips    */
 
-#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
@@ -224,7 +224,7 @@
 			       &flash_info[0]);
 #endif
 
-#if defined(CFG_ENV_IS_IN_FLASH) && defined(CFG_ENV_ADDR)
+#if defined(CONFIG_ENV_IS_IN_FLASH) && defined(CFG_ENV_ADDR)
 		flash_protect (FLAG_PROTECT_SET,
 			       CFG_ENV_ADDR,
 			       CFG_ENV_ADDR + CFG_ENV_SIZE - 1,