Update kernel-firmware-platform to version 20250422 / rev 6 via SR 1272735
    
    https://build.opensuse.org/request/show/1272735
    by user tiwai + anag_factory
    - Change conflicts filesystem < 84 to conflicts filesystem without
      may-perform-usrmerge. Version 84 is specific to Tumbleweed; CODE
      16 uses Version 16; yet we need to ensure we get an up-to-date
      version of filesystem. Relying on the recently introduced provides
      instructing zypp about the usrmerge is perfect for this use case.