[XEN][POWERPC] Fix build break.

Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

diff --git a/xen/arch/powerpc/of-devtree.h b/xen/arch/powerpc/of-devtree.h
index 21e96ef9115a2876f2e236e9ca53cb66f6bc9367..09e836eff4f1fd749ca7758d79769919a99f79bf 100644 (file)
--- a/xen/arch/powerpc/of-devtree.h
+++ b/xen/arch/powerpc/of-devtree.h
@@ -22,6 +22,7 @@
 #define _OF_DEVTREE_H
 
 #include <xen/types.h>
+#include <xen/string.h>
 #include <public/xen.h>
 
 enum {