If a conversion struct was passed, then initialize view using
format from the conversion structure.
v2: use vk_format directly from the anv_format struct
v3: added some assertions (Lionel)
Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>