Resolve #3508316 "Whitelisted ip adresses2.x"

Closes #3508316

config/schema/email_tfa.schema.yml

@@ -32,6 +32,9 @@ email_tfa.settings:
       sequence:
         type: string
         label: 'Ignore Role'
+    ignore_ip_addresses:
+      label: 'Ignore IP addresses'
+      type: string
     dev_mode:
       label: 'Dev Mode'
       type: boolean