Add valgrind support to compiler arena allocator.

Change-Id: Id9974301d3810bfac968ee562b01a11098e402c2
diff --git a/runtime/gc/space/dlmalloc_space.cc b/runtime/gc/space/dlmalloc_space.cc
index 8b99e96..0de676e 100644
--- a/runtime/gc/space/dlmalloc_space.cc
+++ b/runtime/gc/space/dlmalloc_space.cc
@@ -22,7 +22,7 @@
 #include "utils.h"
 
 #include <valgrind.h>
-#include <../memcheck/memcheck.h>
+#include <memcheck/memcheck.h>
 
 namespace art {
 namespace gc {