DO NOT MERGE Revert "Remove car version of Room library."

This reverts commit e9ac9f329f69d50c450e5ce23285b2cdf3769485.

Reason: https://b.corp.google.com/issues/138749761#comment18
Bug: 138749761
Test: it builds
Change-Id: Ie582005a491b29da919fca42c0ddcf5f4bf9de16
6 files changed