Propagate set events in the emulated vehicle HAL.

Bug: 110105682

Test: build, deploy, test updating temp via app UI, temp change reflected in subscribed system UI
Change-Id: I75e6825ff9450f977c1f5d7f2b97bca6c78f1883
(cherry picked from commit 6d8110ffbf7e964246c13810d909b3a5cf7818b6)
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.cpp b/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.cpp
index c6955e0..58d8867 100644
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.cpp
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.cpp
@@ -187,6 +187,7 @@
     }
 
     getEmulatorOrDie()->doSetValueFromClient(propValue);
+    doHalEvent(getValuePool()->obtain(propValue));
 
     return StatusCode::OK;
 }