DOC-4970 Added roles to required permissions table for migrations API

Author: rrelledge

content/operate/rs/references/rest-api/requests/migrations/_index.md

@@ -26,9 +26,9 @@ Gets the migration status of a database in the cluster.
 
 #### Required permissions
 
-| Permission name |
-|-----------------|
-| [view_bdb_info]({{< relref "/operate/rs/references/rest-api/permissions#view_bdb_info" >}}) |
+| Permission name | Roles |
+|-----------------|-------|
+| [view_bdb_info]({{< relref "/operate/rs/references/rest-api/permissions#view_bdb_info" >}}) | admin<br />cluster_member<br />cluster_viewer<br />db_member<br />db_viewer<br />user_manager |
 
 ### Request {#get-request}