BZ2100534 added AWS route 53 to restricted installation note

Author: bscott-rh

modules/installation-about-restricted-network.adoc

@@ -48,8 +48,7 @@ require an active connection to the internet to obtain software components. Rest
 ifndef::ibm-power[]
 If you choose to perform a restricted network installation on a cloud platform, you
 still require access to its cloud APIs. Some cloud functions, like
-Amazon Web Service's IAM service, require internet access, so you might still
-require internet access.
+Amazon Web Service's Route 53 DNS and IAM services, require internet access.
 //behind a proxy
 Depending on your network, you might require less internet
 access for an installation on bare metal hardware or on VMware vSphere.