Fixed issue with always_comb block using signals written within

Created by: silabs-hfegran

Signals may be have dependencies on each other, thus to avoid having to micromanage order of execution, they are split into separate always_comb blocks. Assign will not work due to sensitivity list issues with functions, and a single always_comb block will cause issues due to clause b in section 9.2.2.2.1 in ieee 1800-2017