ART: Fix allocation entrypoint instrumentation

Fix the unstarted-runtime case. Special-case the reset call to
the current thread, only.

Bug: 31684277
Test: m test-art-host
Change-Id: Ie8f8f24b2a6041344266a4e6b6bf8ddd9a0352a5
diff --git a/runtime/instrumentation.cc b/runtime/instrumentation.cc
index a73970b..bed489f 100644
--- a/runtime/instrumentation.cc
+++ b/runtime/instrumentation.cc
@@ -647,7 +647,11 @@
   } else {
     MutexLock mu(self, *Locks::runtime_shutdown_lock_);
     SetQuickAllocEntryPointsInstrumented(instrumented);
-    ResetQuickAllocEntryPoints();
+
+    // Note: ResetQuickAllocEntryPoints only works when the runtime is started. Manually run the
+    //       update for just this thread.
+    ResetQuickAllocEntryPointsForThread(self, nullptr);
+
     alloc_entrypoints_instrumented_ = instrumented;
   }
 }