[Mesa-dev] i965: Remove surface state Tile-X / Tile-Y offsets (GEN8 enabling)

[Abdiel Janulgue]

(cover letter seems to be lost in the way for the patch series but here it is) 

Gen 6/7 hardware support for tile_x and tile_y offset fields in SURFACE_STATE 
has been removed in Gen8. All code dependencies must be removed. This patch 
series completely eliminates the tile_x and y fields in the normal render 
paths and BLORP. The LOD fields should be used instead.

This fixes https://bugs.freedesktop.org/show_bug.cgi?id=72068.

CC: kenneth at whitecape.org