Move vehicle hal to start in early_hal

Vehicle HAL required before storage encryption can get unlocked
when using vehicle seed binding with ECU.

Test: manual, check vehicle-hal starts in early_hal from logcat
Bug: 157501579
Change-Id: I88db77fbb1d04577b999b47e6f8dc4df1b300832
diff --git a/automotive/vehicle/2.0/default/android.hardware.automotive.vehicle@2.0-service.rc b/automotive/vehicle/2.0/default/android.hardware.automotive.vehicle@2.0-service.rc
index c8c89dc..44f9134 100644
--- a/automotive/vehicle/2.0/default/android.hardware.automotive.vehicle@2.0-service.rc
+++ b/automotive/vehicle/2.0/default/android.hardware.automotive.vehicle@2.0-service.rc
@@ -1,4 +1,4 @@
 service vendor.vehicle-hal-2.0 /vendor/bin/hw/android.hardware.automotive.vehicle@2.0-service
-    class hal
+    class early_hal
     user vehicle_network
     group system inet