Fix dist(s)-with-tag and add tests to prevent regression.

While AndroidMkEntries' DistFiles were populated from java_library
properly, there was a bug in the conditionals that dropped the tagged
DistFiles.

Fixes b/152834186
Fixes b/161339864

Test: soong tests, m sdk dist (creates out/dist/test.jar with
aosp/1363578)

Signed-off-by: Jingwen Chen <jingwen@google.com>
Change-Id: Id895282256fd367b2f46dcb7a643465fa66c9456