Rename reference VHAL to V3.

The current target is actually supporting VHAL v2
interface, but we did not update the name. Update its name to V3
since it is going to support VHAL v3 interface.

Test: Presubmit
Bug: 300694866
Change-Id: I54bd15edb83add03b0fe8272b6e8787fef7003cf
diff --git a/automotive/vehicle/aidl/impl/vhal/vhal-default-service.rc b/automotive/vehicle/aidl/impl/vhal/vhal-default-service.rc
index 19267cd..9fa7b98 100644
--- a/automotive/vehicle/aidl/impl/vhal/vhal-default-service.rc
+++ b/automotive/vehicle/aidl/impl/vhal/vhal-default-service.rc
@@ -1,4 +1,4 @@
-service vendor.vehicle-hal-default /vendor/bin/hw/android.hardware.automotive.vehicle@V1-default-service
+service vendor.vehicle-hal-default /vendor/bin/hw/android.hardware.automotive.vehicle@V3-default-service
     class early_hal
     user vehicle_network
     group system inet