Info-beamer hosted OS 14 release thread

Released testing 241014-f022ae:

  • [Pi4] Add back analog audio output
  • [Pi4/5] Add contentprocess:pixel_format() to query pixel format of content process (currently either "rgba" or "bgra".
  • [Pi4/5] Update EEPROM to 2024-10-10
  • [Pi3] In KMS mode, reduce CMA to 128MB on Pi3A+. Doesn’t like 256MB for some reason!?