Create CtsNetTestCasesMaxTargetSdk31.

This APK will only run tests that require target SDK 31 or below.

Bug: 233553525
Test: test-only change
Change-Id: Ia86187de50107748d8053194d3f7a55b7947412e
(cherry picked from commit 9e61b824042ea65f25e683ccc9faaa016742a412)
Merged-In: Ia86187de50107748d8053194d3f7a55b7947412e
3 files changed