* loop-doloop.c: Include loop-unroll.h.

Index: loop-doloop.c
===================================================================
--- loop-doloop.c	(revision 216517)
+++ loop-doloop.c	(working copy)
@@ -33,6 +33,7 @@
 #include "params.h"
 #include "target.h"
 #include "dumpfile.h"
+#include "loop-unroll.h"
 
 /* This module is used to modify loops with a determinable number of
    iterations to use special low-overhead looping instructions.