Fix UnbundledProductApp test to allow extendend public libraries.

This fixes the test to conform with the change in
https://r.android.com/2165025. The test only broke on devices that do
have extended public libraries, in particular wembley.

Test: atest libnativeloader_test
Bug: 242016740
Bug: 237572732
Change-Id: I1400a701a622f9f35b3ce0781575134faca679ae
1 file changed