Add support for tiled textures
Created by: anarsoul
This is initial support for tiled textures - tiling/untiling routines aren't optimized yet.
lima-18.1 branch can't compile fragment shader of "kmscube -M rgba" due to ppir regalloc failure, I'm using this patch as a workaround for testing: anarsoul/mesa-lima@14e0665
Tested with kmscube -M rgba from my repo (it uses 500x500 texture) and gbm-surface-fbo from your gfx repo with 260x260 fbo.