board: nios2: Add CONFIG_CFI_FLASH_MTD guard to flash.h header include
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
diff --git a/board/altera/nios2-generic/nios2-generic.c b/board/altera/nios2-generic/nios2-generic.c
index 5c5b1b9..aa126d7 100644
--- a/board/altera/nios2-generic/nios2-generic.c
+++ b/board/altera/nios2-generic/nios2-generic.c
@@ -8,7 +8,9 @@
#include <common.h>
#include <netdev.h>
+#if defined(CONFIG_CFI_FLASH_MTD)
#include <mtd/cfi_flash.h>
+#endif
#include <asm/io.h>
#include <asm/gpio.h>