DO NOT MERGE Add DISTANCE_DISPLAY_UNIT to google VHAL

Bug: 138816759
Test: aae app vhal apply google & dump properties
Change-Id: I6a4d571975d5fe7ba6419cd4c37b734f21162f41
(cherry picked from commit 2619443e0a8b5bb8ca19c6c5761c8f6a834e4936)

Merged-In: I6a4d571975d5fe7ba6419cd4c37b734f21162f41
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/DefaultConfig.h b/automotive/vehicle/2.0/default/impl/vhal_v2_0/DefaultConfig.h
index a46de24..77053cf 100644
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/DefaultConfig.h
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/DefaultConfig.h
@@ -545,6 +545,13 @@
                 .areaConfigs = {VehicleAreaConfig{.areaId = (0)}}},
      .initialValue = {.int32Values = {(int)VehicleUnit::FAHRENHEIT}}},
 
+    {.config = {.prop = toInt(VehicleProperty::DISTANCE_DISPLAY_UNITS),
+                .access = VehiclePropertyAccess::READ_WRITE,
+                .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
+                .configArray = {(int)VehicleUnit::KILOMETER, (int)VehicleUnit::MILE},
+                .areaConfigs = {VehicleAreaConfig{.areaId = (0)}}},
+     .initialValue = {.int32Values = {(int)VehicleUnit::MILE}}},
+
     {.config =
          {
              .prop = toInt(VehicleProperty::NIGHT_MODE),