Add encryptionEnabled parameter in the object storage documentation

This patch updates the swift control plane CR and adds the missing
encryptionEnabled parameter. A Note is also added to explain when
this parameter must be turned to true.

Related: https://issues.redhat.com/browse/OSPCIX-1271

Signed-off-by: Francesco Pantano <fpantano@redhat.com>

Author: fmount

docs_user/modules/proc_adopting-the-object-storage-service.adoc

@@ -64,6 +64,7 @@ spec:
       swiftProxy:
         secret: osp-secret
         replicas: 2
+        encryptionEnabled: false
         passwordSelectors:
           service: SwiftPassword
         serviceUser: swift
@@ -86,6 +87,9 @@ spec:
 * `metallb.universe.tf/loadBalancerIPs: <172.17.0.80>` specifies the load balancer IP in your environment. If you use IPv6, change the load balancer IP to the load balancer IP in your environment, for example, `metallb.universe.tf/loadBalancerIPs: fd00:bbbb::80`.
 * `spec.swift.swiftProxy.networkAttachments` must match the network attachment for the previous {object_storage} configuration from the {OpenStackShort} deployment.
 
+[NOTE]
+If `SwiftEncryptionEnabled: true` was set in {rhos_prev_long}, ensure that `spec.swift.swiftProxy.encryptionEnabled` is set to `true` and that the {key_manager_first_ref} adoption is complete before proceeding.
+
 .Verification
 
 * Inspect the resulting {object_storage} pods: