Add HAL changes for AUTOMATIC_EMERGENCY_BRAKING_STATE

This property supports error states in addition to its own state.
This is why the comments mention two @data_enums for the property.
This works because states are integer values so as long as all states
have distinct integer values, this functions correctly.

Bug: 264336118
Test: atest VtsHalAutomotiveVehicle_TargetTest
Test: atest CtsCarTestCases:CarPropertyManagerTest
Test: atest CtsCarTestCases:VehiclePropertyIdsTest
Test: atest AutomaticEmergencyBrakingStateTest
Test: atest ErrorStateTest
Change-Id: I6acf5958caf00822b1455915cc715e04453d0bbd