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/lib/fdtdec.c b/lib/fdtdec.c
index ffa78f9..96b6b71 100644
--- a/lib/fdtdec.c
+++ b/lib/fdtdec.c
@@ -6,6 +6,7 @@
 #ifndef USE_HOSTCC
 #include <common.h>
 #include <boot_fit.h>
+#include <display_options.h>
 #include <dm.h>
 #include <hang.h>
 #include <init.h>