CodeGen from PR 20869 in Azure/azure-rest-api-specs

Merge d75799db51854d9ec0ce692a80c8b31cfceb2009 into 4b5fe2fb0a5066c4ff2bd429dbd5e1afda6afab3

Author: SDKAuto

schemas/2022-05-01/Microsoft.Cache.json

@@ -457,7 +457,7 @@
         },
         "rdb-backup-frequency": {
           "type": "string",
-          "description": "Specifies the frequency for creating rdb backup"
+          "description": "Specifies the frequency for creating rdb backup in minutes. Valid values: (15, 30, 60, 360, 720, 1440)"
         },
         "rdb-backup-max-snapshot-count": {
           "type": "string",