Fix inconsistencies in VehicleArea HAL documentation

Remove references of area types and use more consistent language.
Use same documentation across AIDL and HIDL definitions.

Bug: 259987652
Test: presubmit
Change-Id: I4da6ff23fd221698c9fbe9c9f817f51959a49a79
diff --git a/current.txt b/current.txt
index a6c4d80..754093f 100644
--- a/current.txt
+++ b/current.txt
@@ -937,5 +937,6 @@
 889b59e3e7a59afa67bf19882a44f51a2f9e43b6556ec52baa9ec3efd1ef7fbe android.hardware.camera.device@3.2::types
 db37a1c757e2e69b1ec9c75a981a6987bd87a131d92ab6acc00e04d19f374281 android.hardware.automotive.vehicle@2.0::types
 997017f581406fca1675d2f612f7ccd73f0d04eadd54bf6212e6cf5971d0872d android.hardware.automotive.vehicle@2.0::types
+06983ffe6d75e90a22503a6d9fd14417f983a36bb060a80ad5915240d69b8a40 android.hardware.automotive.vehicle@2.0::types
 
 # There will be no more HIDL HALs. Use AIDL instead.