When a pipeline has dynamic logicop state or blend state, we defer lrz
write decision to tu6_calculate_lrz_state. As such,
tu6_calculate_lrz_state should look at both states when either of them
is dynamic.
Fixes dEQP-GLES2.functional.fragment_ops.interaction.basic_shader.21 on
angle, which uses dynamic logicop state and static blend state with
blending enabled.
Fixes: c8c7154c2e ("tu: Implement extendedDynamicState3ColorBlendEnable")
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20136>