rename CFG_ENV_IS_IN_SPI_FLASH in CONFIG_ENV_IS_IN_SPI_FLASH

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/include/configs/M54451EVB.h b/include/configs/M54451EVB.h
index cf58239..06e2244 100644
--- a/include/configs/M54451EVB.h
+++ b/include/configs/M54451EVB.h
@@ -266,7 +266,7 @@
  * Environment is embedded in u-boot in the second sector of the flash
  */
 #if defined(CONFIG_CF_SBF)
-#	define CFG_ENV_IS_IN_SPI_FLASH	1
+#	define CONFIG_ENV_IS_IN_SPI_FLASH	1
 #	define CFG_ENV_SPI_CS		1
 #	define CFG_ENV_OFFSET		0x20000
 #	define CFG_ENV_SIZE		0x2000