RESTRICT AUTOMERGE: Only applicable to mainline-prod

Atest: move active targets to atest/Android.bp

1. remove unknown file: tools/atest_updatedb_unittest.py
2. migrate asuite_lib_test dir
3. asuite_lib_run_test.py -> asuite_lib_run_tests.py

BUG: 176093021

Test: m atest # will generate atest-dev
m asuite_metrics_lib_py3_tests  # will pass
m asuite_cc_lib_py3_tests       # will pass

Change-Id: Ibffc4060e2c3c5259cda6d0145b5c74471febdaa
Merged-In: Ibffc4060e2c3c5259cda6d0145b5c74471febdaa
Merged-In: I46bfec56872bf34393f250d9af35acaa294c2590
6 files changed