Label pages mapped by linker_allocator

Change-Id: I7e0bf29bc1a480e9be0d1ae573ca1063d90d82ff
diff --git a/libc/bionic/dlmalloc.c b/libc/bionic/dlmalloc.c
index d582071..e89c5d1 100644
--- a/libc/bionic/dlmalloc.c
+++ b/libc/bionic/dlmalloc.c
@@ -16,6 +16,7 @@
 
 #include "dlmalloc.h"
 
+#include "private/bionic_prctl.h"
 #include "private/libc_logging.h"
 
 // Send dlmalloc errors to the log.
@@ -30,11 +31,6 @@
 #define MMAP(s) named_anonymous_mmap(s)
 #define DIRECT_MMAP(s) named_anonymous_mmap(s)
 
-// Local definitions of custom prctl arguments to set a vma name in Android kernels.
-#include <sys/prctl.h>
-#define PR_SET_VMA           0x53564d41
-#define PR_SET_VMA_ANON_NAME 0
-
 // Ugly inclusion of C file so that bionic specific #defines configure dlmalloc.
 #include "../upstream-dlmalloc/malloc.c"