Allow disabling tests even with ENABLE_PROBE_IGNORED

A regex in $RAVENWOOD_REALLY_DISABLE is used as an "exclude" filter.

If the regex partial-matches the test full name
(class name, or class name + "#" + method name), we skip it.

Test: RAVENWOOD_RUN_DISABLED_TESTS=1 RAVENWOOD_REALLY_DISABLE='\.CustomTileDefaultsRepositoryTest' atest SystemUiRavenTests
and make sure CustomTileDefaultsRepositoryTest is skipped.

Bug: 319646274
Change-Id: Id98871aaea6d32e134f84b745f3eae7c9f27931f