common: Drop uuid.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/fs/ext4/ext4fs.c b/fs/ext4/ext4fs.c
index 966b427..96ca276 100644
--- a/fs/ext4/ext4fs.c
+++ b/fs/ext4/ext4fs.c
@@ -26,6 +26,7 @@
 #include "ext4_common.h"
 #include <div64.h>
 #include <malloc.h>
+#include <uuid.h>
 
 int ext4fs_symlinknest;
 struct ext_filesystem ext_fs;