Build: Skip JNI lib symlink in second-stage build

When creating a sanitized image, skip creating JNI library
symlinks in the second round.

Bug: 33279120
Test: m && m SANITIZE_TARGET=address & ls -l $OUT/system/app/NfcNci/lib/*
Change-Id: Ib5eace9a49eb8b693603ba5cc59e392d575c44e3