openvino

b9f0fe4b - [GPU] enable gs128 by default for int8 models in xe2+ platforms (#32493)

[GPU] enable gs128 by default for int8 models in xe2+ platforms (#32493) ### Details: - Enable gs128 by default for int8 model when it runs on XE2+ platforms - It is not enabled for other cases because of performance concern - Selection of gs128 is not exposed to user directly. When the config is set as PER-TOKEN(which is a default value) and conditions are met(int8 layer, XE2+ platform), gs128 is chosen within GPU plugin. ### Tickets: - 167267