Move ALLOC_CACHE_ALIGN_BUFFER() to the new memalign.h header

Now that we have a new header file for cache-aligned allocation, we should
move the stack-based allocation macro there also.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/fs/ext4/dev.c b/fs/ext4/dev.c
index c77c02c..20f5256 100644
--- a/fs/ext4/dev.c
+++ b/fs/ext4/dev.c
@@ -25,6 +25,7 @@
 
 #include <common.h>
 #include <config.h>
+#include <memalign.h>
 #include <ext4fs.h>
 #include <ext_common.h>
 #include "ext4_common.h"
diff --git a/fs/ext4/ext4_common.c b/fs/ext4/ext4_common.c
index cab5465..c77e22d 100644
--- a/fs/ext4/ext4_common.c
+++ b/fs/ext4/ext4_common.c
@@ -24,6 +24,7 @@
 #include <ext4fs.h>
 #include <inttypes.h>
 #include <malloc.h>
+#include <memalign.h>
 #include <stddef.h>
 #include <linux/stat.h>
 #include <linux/time.h>
diff --git a/fs/ext4/ext4_write.c b/fs/ext4/ext4_write.c
index fbc4c4b..d346c06 100644
--- a/fs/ext4/ext4_write.c
+++ b/fs/ext4/ext4_write.c
@@ -23,6 +23,7 @@
 
 
 #include <common.h>
+#include <memalign.h>
 #include <linux/stat.h>
 #include <div64.h>
 #include "ext4_common.h"
diff --git a/fs/fat/fat.c b/fs/fat/fat.c
index a863644..06dcbb7 100644
--- a/fs/fat/fat.c
+++ b/fs/fat/fat.c
@@ -16,6 +16,7 @@
 #include <asm/byteorder.h>
 #include <part.h>
 #include <malloc.h>
+#include <memalign.h>
 #include <linux/compiler.h>
 #include <linux/ctype.h>