I recently noticed that Shut Down was broken, the laptop was resetting instead.
After further investigation - trial and error method due to my lack of knowledge - I found that without SSDT-SBUS-MCHC.aml this error was fixed.
I also removed SSDT-GPI0.aml, SSDT-RMCF-PS2Map-dell.aml and SSDT-OCWork-dell.aml.
I brought SSDT-BRT6.aml, SSDT-XOSI.aml and their respective patched back.
Now brightness keys work as Fn+F11 and Fn+F12 (Fn pressing required), trackpad is activated on I2C0@15 and shutdown is fixed.
Thank you both again, I could not achieve this without your help. I just had to fine tuned the configuration.
I think I can consider this project finished now!
ioreg MacBook Poor de Fernando.zip
EFI.zip