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.

Bug: 152655956
Test: m
Merged-In: I924042eebe28360217cfdcb9807a37195c912242
Change-Id: I924042eebe28360217cfdcb9807a37195c912242
(cherry picked from commit 38185e4acb4ab9c20fa26ef74ecb9cbb740a07fc)
1 file changed