isl/state: Allow for full 31-bit buffer texture sizes

Ivy Bridge and above can handle up to 2^31 elements for RAW buffer
surfaces.

Reviewed-by: Chad Versace <chad.versace@intel.com>
Cc: "12.0" <mesa-stable@lists.freedesktop.org>

src/intel/isl/isl_surface_state.c

@@ -455,7 +455,7 @@ isl_genX(buffer_fill_state_s)(void *state,
    s.SurfaceHorizontalAlignment = isl_to_gen_halign[4];
    s.Height = ((num_elements - 1) >> 7) & 0x3fff;
    s.Width = (num_elements - 1) & 0x7f;
-   s.Depth = ((num_elements - 1) >> 21) & 0x3f;
+   s.Depth = ((num_elements - 1) >> 21) & 0x3ff;
    s.SurfacePitch = info->stride - 1;
    s.NumberofMultisamples = MULTISAMPLECOUNT_1;