Make run-ravenwood-tests.sh to set "enablement" policy too

- Enablement policy files now require a test module name
with a wildcard policy.

- Also, now we can pass the test module names as extra arguments
to run-ravenwood-tests.sh.

Bug: 292141694
Flag: TEST_ONLY
Test: $ANDROID_BUILD_TOP/frameworks/base/ravenwood/scripts/run-ravenwood-tests.sh -s
Test: $ANDROID_BUILD_TOP/frameworks/base/ravenwood/scripts/run-sysui-tests.sh
Change-Id: I8a0ad5dd6a5011128b79350acb5143858add0d9b