amd: move BO metadata code to ac_surface.c, clean up radeon_surf.u.gfx9, update amdgpu_drm.h
This is an opportunity to share all BO metadata code between radeonsi and RADV.
Feel free to add tested RADV commits to use this code.
This is an opportunity to share all BO metadata code between radeonsi and RADV.
Feel free to add tested RADV commits to use this code.