GPIO config on 40-pin header for I2S2 - Pinmux configuration

Hi!

First, thank you for your quick answers!

So I went to see inside the flash.xml file and found out its the following tegra234-bpmp-3701-000-3737-0000.dtb :

So i then proceeded to convert it to .dts ton include my .dtsi :
(Making sure you're not a bot!)

but then i get this error while trying to recompile it :

What should I do?

-Loic