Add support for multiple LOCAL_COMPATIBILITY_SUITES & undefined testcase directories. am: 0dd1fb9112 am: a749d6bdb5 am: 5a8f82d4a1 am: 7b26faa5ea
am: acaa4cc623  -s ours

Change-Id: I670716ca7eff2e8d7cf099d4e1c5ecfb82b4f847