Add error code to VeiclePropertyStore.

Add error code to differentiate between different error cases, e.g.
when the value is not configured v.s. the value is not set.

Test: atest VehicleHalVehicleUtilsTest
Bug: 201830716
Change-Id: I1ef0716edce5bc72e07a769026769a330b4e3025
3 files changed