aarch64-speculation.cc: Replace include of cfg.h with include of backend.h.

2018-08-27  Steve Ellcey  <sellcey@cavium.com>

	* config/aarch64/aarch64-speculation.cc: Replace include of cfg.h
	with include of backend.h.

From-SVN: r263890

gcc/ChangeLog

+2018-08-27  Steve Ellcey  <sellcey@cavium.com>
+
+	* config/aarch64/aarch64-speculation.cc: Replace include of cfg.h
+	with include of backend.h.
+
 2018-08-27  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/86927

gcc/config/aarch64/aarch64-speculation.cc

@@ -25,7 +25,7 @@
 #include "rtl.h"
 #include "tree-pass.h"
 #include "profile-count.h"
-#include "cfg.h"
+#include "backend.h"
 #include "cfgbuild.h"
 #include "print-rtl.h"
 #include "cfgrtl.h"