asahi,hk: disentangle logicop_enable

logicop_func=COPY is different from logicop_enable due to overriding blending.
maintain the info we need to implement properly. fixes

dEQP-VK.pipeline.shader_object_unlinked_binary.logic_op_na_formats.r32g32b32a32_sfloat.copy_blend

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34426>
4 files changed