Build file lists for general-tests and device-tests

Add build targets that will just spit out a list of what files will be
in general-tests.zip and device-tests.zip, so that these can be
referenced by other tools without needing to actually build any
artifacts.

Test: m device-tests-files-list, m general-tests-files-list
Bug: 378926009
Change-Id: Ifc30a38ef97cf7a199f146bb6cf63d13d2f44f1d