anv/blorp: Use anv_get_layerCount everywhere

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: "13.0 17.0" <mesa-stable@lists.freedesktop.org>
(cherry picked from commit 9319ef96fd5c2489754eae1b058e4087d7259341)
1 file changed