Remove ashmem from system/core

This topic removes ashmem from ART. Changes the names in system/core
too. It only affects "dalvik-" ashmem regions which are the majority.

Change-Id: Id993b4510d9b1461954cd8a6bf8ccede45fdaacc
Signed-off-by: Joel Fernandes <joelaf@google.com>
diff --git a/libmemunreachable/MemUnreachable.cpp b/libmemunreachable/MemUnreachable.cpp
index 529a043..b160de9 100644
--- a/libmemunreachable/MemUnreachable.cpp
+++ b/libmemunreachable/MemUnreachable.cpp
@@ -244,7 +244,7 @@
     } else if (mapping_name == "[anon:libc_malloc]") {
       // named malloc mapping
       heap_mappings.emplace_back(*it);
-    } else if (has_prefix(mapping_name, "/dev/ashmem/dalvik")) {
+    } else if (has_prefix(mapping_name, "[anon:dalvik-")) {
       // named dalvik heap mapping
       globals_mappings.emplace_back(*it);
     } else if (has_prefix(mapping_name, "[stack")) {