Added nvdla driver

Created by: cybergaszcz

Driver merged from 'firesim-nvdla'. Backported some patches from usdk419. Tested with lenet-mnist-caffe https://github.com/LeiWang1999/nvdla_loadables/tree/master/lenet-mnist-caffe compiled for nv_large. During boot is require to set following attribute for dtb: fdt set /reserved-memory/framebuffer@d0000000/ no-map;