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/configs/stxgp3.h b/include/configs/stxgp3.h
index f4a8fa5..95230ac 100644
--- a/include/configs/stxgp3.h
+++ b/include/configs/stxgp3.h
@@ -288,7 +288,7 @@
 /* We use the top boot sector flash, so we have some 16K sectors for env
  */
 #ifndef CFG_RAMBOOT
-  #define CFG_ENV_IS_IN_FLASH	1
+  #define CONFIG_ENV_IS_IN_FLASH	1
   #define CFG_ENV_ADDR		(CFG_MONITOR_BASE + 0x60000)
   #define CFG_ENV_SECT_SIZE	0x4000	/* 16K (one top sector) for env */
   #define CFG_ENV_SIZE		0x2000