[lint] Lint fix for RndCntLfsrX parameters
[lint] Lint fix for RndCntLfsrX parameters

This doesn't produce a lint warning in the version of verilator
currently used in CI but does produce a warning in newer versions.

AmbiML/ibex,lowRISC/ibex,lowRISC/ibex,AmbiML/ibex,lowRISC/ibex,AmbiML/ibex,AmbiML/ibex,lowRISC/ibex