fs: change to new flag variable

Replace EXTRA_CFLAGS with ccflags-y. And change ntfs-objs to ntfs-y
for cleaner conditional inclusion.

Signed-off-by: matt mooney <mfm@muteddisk.com>
Acked-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
diff --git a/fs/jfs/Makefile b/fs/jfs/Makefile
index 3adb639..a58fa72 100644
--- a/fs/jfs/Makefile
+++ b/fs/jfs/Makefile
@@ -13,4 +13,4 @@
 
 jfs-$(CONFIG_JFS_POSIX_ACL) += acl.o
 
-EXTRA_CFLAGS += -D_JFS_4K
+ccflags-y := -D_JFS_4K