Blender Git Loki

Cycles: Fix wrong GPU state calculation

Currently was only used for logging, but better to fix the size so
that it matches reality.

The issue was caused by decoupling number of shadow intersections
and using much higher number for CPU. This caused the total state
on GPU to be logged as 10s of gigabytes instead of 100s of megabytes.

Differential Revision: https://developer.blender.org/D12755