anv: Fix some depth buffer sampling cases on ICL+
Don't attempt sampling with HiZ if the sampler lacks support for it. On ICL, the HW docs state that sampling with HiZ is not supported and that instances of AUX_HIZ in the RENDER_SURFACE_STATE object will be interpreted as AUX_NONE.
Cc: mesa-stable@lists.freedesktop.org
/cc @aphogat
Edited by Nanley Chery