Fix omission of llndk libraries during abi dump creation.

We omit vendor unavailable modules. This should not apply to llndk
libraries since currently, we do abi checks on their system variants.

Bug: 77101345

Test: m -j libc creates libc.so.lsdump

Test: m -j libjpeg.vendor creates libjpeg.so.lsdump

Test: m -j external/cblas still does not create libblas.so.lsdump

Change-Id: I5522c1cd471bfba8a1f632270ab2f167b4b17117