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: Ieda1b7f0de1c4a5ce4137a0b17731cf619826f9e
Change-Id: Ieda1b7f0de1c4a5ce4137a0b17731cf619826f9e
(cherry picked from commit 153d61e685d083f35d2aff53cb03ed12aa977ac4)
1 file changed