Pullup ticket #6237 - requested by nia
emulators/libretro-bsnes-mercury: NetBSD/arm build fix

Revisions pulled up:
- emulators/libretro-bsnes-mercury/Makefile.common              1.7

---
  Module Name: pkgsrc
  Committed By: nia
  Date: Sat Jun 13 10:01:06 UTC 2020

  Modified Files:
  pkgsrc/emulators/libretro-bsnes-mercury: Makefile.common

  Log Message:
  libretro-bsnes-mercury: Uncondition HAVE_POSIX_MEMALIGN so it works on 32-bit arm

(bsiegert)