Function field_mul_par_kernel 

pub fn field_mul_par_kernel(
    _cr: ClockReset,
    i: FieldMulIn,
    q: Q,
) -> (FieldMulOut, D)

State transition for FieldMulPar.

Only stage 0 and the operand capture live here; stages 1..14 are the two MulChain7 children and the reduction is MulNorm.