Add PCA9548 to Xavier AGX Dev Kit DTB

I am using the Jetson Xavier AGX dev kit alongwith an I2C multiplexer board (pca9548) for my application. I want to use the i2c-mux driver for the multiplexer outputs.
Can anyone suggest a way to add this to the dtb so that the kernel uses this particular driver as soon as it sees the multiplexer board on boot?

Have a reference to the tegra194-camera-e3333-a00.dtsi