libcutils: Set min_sdk_version Modules contributing mainline modules (APK/APEX) should set min_sdk_version as well as apex_available. For now setting min_sdk_version doesn't change build outputs. But build-time checks will be added soon. Bug: 152655956 Test: m Merged-In: I453c63fe29607ea0312da5465b03c741486fb670 Change-Id: I453c63fe29607ea0312da5465b03c741486fb670 (cherry picked from commit 88f00f2d4392a9b13f373209dad224b7763c4bff)