[dv] Double timeout for an RTL run in regression flow
[dv] Double timeout for an RTL run in regression flow

This takes it from 15 to 30 minutes

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