Soong generates vndk-related .libraries.txt files

This is a follow-up CL of I9a24f6975bd4b226a94f61a13d43857dcdce6b88

Generated files are passed to make via MakeVars:
- SOONG_LLNDK_LIBRARIES_FILE
- SOONG_VNDKCORE_LIBRARIES_FILE
- SOONG_VNDKSP_LIBRARIES_FILE
- SOONG_VNDKPRIVATE_LIBRARIES_FILE
- SOONG_VNDKCOREVARIANT_LIBRARIES_FILE
- SOONG_VNDK_LIBRARIES_FILE

Previously filenames were "guessed" from module names. Now VndkMutator
stores filenames as well and generate those files with them.

Bug: 142963962
Bug: 141450808
Test: m && device boots && TH
Change-Id: I0c248b707188f904df60ead50059fefe90bfd17f