Add support for .bss section in oat files.

Change-Id: I779b80b8139d9afdc28373f8c68edff5df7726ce
diff --git a/runtime/gc/space/malloc_space.cc b/runtime/gc/space/malloc_space.cc
index 9bbbb3c..67e8847 100644
--- a/runtime/gc/space/malloc_space.cc
+++ b/runtime/gc/space/malloc_space.cc
@@ -90,7 +90,7 @@
 
   std::string error_msg;
   MemMap* mem_map = MemMap::MapAnonymous(name.c_str(), requested_begin, *capacity,
-                                         PROT_READ | PROT_WRITE, true, &error_msg);
+                                         PROT_READ | PROT_WRITE, true, false, &error_msg);
   if (mem_map == nullptr) {
     LOG(ERROR) << "Failed to allocate pages for alloc space (" << name << ") of size "
                << PrettySize(*capacity) << ": " << error_msg;