Fix to validation layer param checker for extensions

[nrspruit]

No description provided.

[nrspruit]

error reporting invalid argument when running the param checker if we don't update the largest stype allowed.

basically, any api call with the following desc structures would now fail in the param checker:
...
ZE_STRUCTURE_TYPE_PITCHED_ALLOC_DEVICE_EXP_PROPERTIES = 0x0002001D, ///< ::ze_device_pitched_alloc_exp_properties_t
ZE_STRUCTURE_TYPE_BINDLESS_IMAGE_EXP_DESC = 0x0002001E, ///< ::ze_image_bindless_exp_desc_t
ZE_STRUCTURE_TYPE_PITCHED_IMAGE_EXP_DESC = 0x0002001F, ///< ::ze_image_pitched_exp_desc_t
ZE_STRUCTURE_TYPE_MUTABLE_GRAPH_ARGUMENT_EXP_DESC = 0x00020020, ///< ::ze_mutable_graph_argument_exp_desc_t
ZE_STRUCTURE_TYPE_INIT_DRIVER_TYPE_DESC = 0x00020021, ///< ::ze_init_driver_type_desc_t
ZE_STRUCTURE_TYPE_FORCE_UINT32 = 0x7fffffff

} ze_structure_type_t;

I will revisit this function later due to this being error prone.