common: Drop display_options.h from common header

Move this out of the common header and include it only where needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/fs/fs.c b/fs/fs.c
index 6de1a3e..8324b4a 100644
--- a/fs/fs.c
+++ b/fs/fs.c
@@ -7,6 +7,7 @@
 
 #include <command.h>
 #include <config.h>
+#include <display_options.h>
 #include <errno.h>
 #include <common.h>
 #include <env.h>