Enable RKP+KeyMint integration test

This integration was technically a requirement on keymint v2, but we
weren't enforcing it with a test. So realistically we are only able
to start enforcing the test with keymint v3.

Test: atest VtsAidlKeyMintTargetTest
Change-Id: Ia4feb8ce4b7fd1e47a5c6c9b06ddb12276a9c5ee