• Add a patch from upstream to fix a dumb calculation in ao_oss.c
• Bump PORTREVISION

While I'm here pet portlint, USE_* comes before USES

PR: 220920
Submitted by: Oleh Hushchenkov <gor@clogic.com.ua>
Obtained from: https://github.com/mpv-player/mpv/commit/8c82555e41a6a9edb677756cfe89f28a2918be2a