Remove test_com.android.os.statsd from apex_available
In order to simplify the apex logic in Soong, avoid needing to mention test apexes in apex_available by setting apex_available_name in the test apex to masquerade as the corresponding non-test apex. Bug: 383592644 Test: builds Change-Id: I8c29e191629f97f7571263e9318be67513f2a853