Adds targets for simarmv6 and armv6

pkg/pkg.status

 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 # Don't run any test-like files that show up in packages directories. It
 # shouldn't be necessary to run "pub install" in these packages, but if you do
 # it shouldn't break the tests.
 */packages/*/*: Skip
 */*/packages/*/*: Skip
 */*/*/packages/*/*: Skip
@@ skipping 137 matching lines @@
 analysis_server/tool/spec/check_all_test: SkipByDesign # Uses dart:io.
 analyzer/test/*: SkipByDesign # Uses dart:io.
 analyzer/tool/task_dependency_graph/check_test: SkipByDesign # Uses dart:io.
 analyzer/tool/summary/check_test: SkipByDesign # Uses dart:io.
 analyzer2dart/*: SkipByDesign # Uses dart:io.
 http_server/test/*: Fail, OK # Uses dart:io.
 observe/test/transformer_test: Fail, OK # Uses dart:io.
 observe/test/unique_message_test: SkipByDesign  # Uses dart:io.
 dart_messages/test/dart_messages_test: Skip  # Uses dart:io.
 
-[ $runtime == vm && ($arch == simarm64 || $arch == simarm || $arch == simarmv5te || $arch == simmips || $arch == armv5te) ]
+[ $runtime == vm && ($arch == simarm64 || $arch == simarm || $arch == simarmv6 || $arch == simarmv5te || $arch == simmips || $arch == armv6 || $arch == armv5te) ]
 # Timeout. These are not unit tests. They do not run efficiently on our
 # simulator or low-end devices.
 *: Skip
 
 [ $runtime == vm ]
 analyzer/test/file_system/physical_resource_provider_test: Pass, Fail # Issue 25472
 # Skip tests on the VM if the package depends on dart:html
 mutation_observer: Skip
 
 [ $compiler == dart2js && $runtime == chrome && $system == macos ]
@@ skipping 31 matching lines @@
 analyzer/test/src/task/general_test: Crash # Issue 24485
 analyzer/test/src/task/html_test: Crash # Issue 24485
 analyzer/test/src/task/html_work_manager_test: Crash # Issue 24485
 analyzer/test/src/task/incremental_element_builder_test: Crash # Issue 24485
 analyzer/test/src/task/inputs_test: Crash # Issue 24485
 analyzer/test/src/task/manager_test: Crash # Issue 24485
 analyzer/test/src/task/model_test: Crash # Issue 24485
 analyzer/test/src/task/strong/checker_test: Crash # t: Failed assertion: line 88 pos 12: '!variable2index.containsKey(element)' is not true.
 analyzer/test/src/task/strong/inferred_type_test: Crash # t: Failed assertion: line 88 pos 12: '!variable2index.containsKey(element)' is not true.
 analyzer/test/src/task/strong_mode_test: Crash # Issue 24485