make hostapad_wired prepare rerunable

@RunTests:8021x_with_credentials,8021x_tls,8021x_tls_bad_private_key_password,8021x_tls_aes256_private_key,8021x_tls_no_private_key_password,8021x_tls_bad_password_flag,8021x_tls_pkcs12_key_restart,8021x_peap_md5,8021x_peap_mschapv2,8021x_peap_gtc,8021x_ttls_pap,8021x_ttls_chap,8021x_ttls_mschap,8021x_ttls_mschapv2,8021x_ttls_mschapv2_eap,8021x_ttls_md5,8021x_ttls_gtc,8021x_with_raw_credentials,8021x_without_password,8021x_without_password_with_ask_at_the_end,8021x_auto_auth_retry_with_backup_network,preserve_8021x_certs,preserve_8021x_leap_con,8021x_ca_path_with_ifcfg_plugin