spl: fat/fs: Add control to build FS EXT4 in SPL

CONFIG_SPL_FS_EXT4 can be used to include/exclude the FS EXT4 from
SPL build. Excluding the FS EXT4 from SPL build can help to save 20KiB
memory.

Signed-off-by: Tien Fong Chee <[email protected]>
Reviewed-by: Tom Rini <[email protected]>

1 files changed, 2 insertions, 1 deletions

diff --git a/fs/fs.c b/fs/fs.c
index 1a6a64ea7f9..c05e6c85eda 100644
--- a/fs/fs.c
+++ b/fs/fs.c
@@ -183,7 +183,8 @@ static struct fstype_info fstypes[] = {
 		.closedir = fat_closedir,
 	},
 #endif
-#ifdef CONFIG_FS_EXT4
+
+#if CONFIG_IS_ENABLED(FS_EXT4)
 	{
 		.fstype = FS_TYPE_EXT,
 		.name = "ext4",