DSOAL r555 - Add missing log prefixes

DSOAL r555@26b2e139 c++-rewrite - Add missing log prefixes [2024-09-05 03:09:07 +0000]
OpenAL Soft r9342@a4e126ac master - Don't assert for unexpected FX slot IDs [2024-09-02 15:40:24 +0000]
Build log: https://github.com/ThreeDeeJay/dsoal/actions/runs/10752448542/job/29820782773

Full Changelog: r554...r555