docs: Add RBAC permissions row to AWSBackupFullAccessPolicyForRestore table

Co-authored-by: storegen <storegen-dev@amazon.com>

cr: https://code.amazon.com/reviews/CR-272110406

Author: jprjoshi

latest/ug/manage-access/k8s-access/access-policy-reference.adoc

@@ -695,6 +695,10 @@ This policy grants the permissions necessary for {aws} Backup to manage and rest
 |`{asterisk}`
 |`*`
 |`list`, `get`, `create`
+
+|`rbac.authorization.k8s.io`
+|`roles`, `clusterroles`
+|`create`, `update`, `escalate`
 |===
 
 == AmazonEKSACKPolicy