I just got a Dell Inspiron 7352 i7-5500u Broadwell HD5500 1920×1080 2-1 laptop for my daughter. Turned it into a MacBook Air and it worked perfectly with El Capitan, Yosemite and macOS Sierra. It has Realtek ALC255 sound card. This is how to patch AppleHDA. 1. Use original AppleHDA.kext and AppleALC released version installed to /System/Library/Extensions
Before installing OSX onto Windows PC or Laptops, check the device ids for compatibility and extract dsdt and ssdt(s). Download RWeverything.