intel: add alignment helper for aux map

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Tested-by: José Roberto de Souza <jose.souza@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23198>

src/intel/common/intel_aux_map.h

@@ -50,6 +50,9 @@ intel_aux_map_init(void *driver_ctx,
                    struct intel_mapped_pinned_buffer_alloc *buffer_alloc,
                    const struct intel_device_info *devinfo);
 
+uint32_t
+intel_aux_map_get_alignment(struct intel_aux_map_context *ctx);
+
 void
 intel_aux_map_finish(struct intel_aux_map_context *ctx);