Change lock ordering to prevent violation.

Violation previously occured in Thread_nativeHoldsLock.

Change-Id: I529552214eebfe7cf0779e62d8a601ca6751838b
diff --git a/runtime/locks.h b/runtime/locks.h
index 9164be6..d4fbd91 100644
--- a/runtime/locks.h
+++ b/runtime/locks.h
@@ -51,6 +51,7 @@
   kJdwpObjectRegistryLock,
   kClassLinkerClassesLock,
   kBreakpointLock,
+  kMonitorLock,
   kThreadListLock,
   kBreakpointInvokeLock,
   kDeoptimizationLock,
@@ -60,7 +61,6 @@
   kJdwpAttachLock,
   kJdwpStartLock,
   kRuntimeShutdownLock,
-  kMonitorLock,
   kHeapBitmapLock,
   kMutatorLock,
   kZygoteCreationLock,