ART: Add raw monitor API

Add support for CreateRawMonitor, DestroyRawMonitor,
RawMonitorEnter, RawMonitorExit, RawMonitorWait, RawMonitorNotify
and RawMonitorNotifyAll.

Bug: 31455788
Test: m test-art-host-run-test-923-monitors
Change-Id: I4eeab8011b547ae0ea8b2317701c68ce56677f79
diff --git a/test/Android.run-test.mk b/test/Android.run-test.mk
index a3f6864..fd3a897 100644
--- a/test/Android.run-test.mk
+++ b/test/Android.run-test.mk
@@ -295,6 +295,7 @@
   920-objects \
   921-hello-failure \
   922-properties \
+  923-monitors \
 
 ifneq (,$(filter target,$(TARGET_TYPES)))
   ART_TEST_KNOWN_BROKEN += $(call all-run-test-names,target,$(RUN_TYPES),$(PREBUILD_TYPES), \