Set min_sdk_version to be part of mainline modules

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.

Exempt-From-Owner-Approval: cp from aosp

Bug: 152655956
Test: m
Merged-In: Idc4aa437c21ea1add95a709bf709a5dbe662b084
Change-Id: Idc4aa437c21ea1add95a709bf709a5dbe662b084
(cherry picked from commit d3fb9f5b)