BRUSSELS — The European Commission is ready to crack down on national capitals that still allow China’s technology giant Huawei to sell 5G network equipment for critical networks. The EU executive on Tuesday will propose legislation that would restrict Huawei from critical telecom networks under EU law, after years of asking national capitals to do so voluntarily, two people with knowledge of the process told POLITICO. Officials are negotiating the final details of the new Cybersecurity Act