include/bootflow.h: Audit include list

This file does not need <linux/list.h> but does directly need
<linux/types.h>.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/include/bootflow.h b/include/bootflow.h
index d408b8c..5a9ac5e 100644
--- a/include/bootflow.h
+++ b/include/bootflow.h
@@ -11,7 +11,7 @@
 #include <bootdev.h>
 #include <image.h>
 #include <dm/ofnode_decl.h>
-#include <linux/list.h>
+#include <linux/types.h>
 
 struct bootstd_priv;
 struct expo;