Add AIX to supported clients with note about required option

Author: mikewill4

articles/storage/blobs/secure-file-transfer-protocol-support.md

@@ -130,7 +130,7 @@ To get started, enable SFTP support, create a local user, and assign permissions
 
 ### Known supported clients
 
-The following clients have compatible algorithm support with SFTP for Azure Blob Storage. See [Limitations and known issues with SSH File Transfer Protocol (SFTP) support for Azure Blob Storage](secure-file-transfer-protocol-known-issues.md) if you're having trouble connecting.
+The following clients have compatible algorithm support with SFTP for Azure Blob Storage. See [Limitations and known issues with SSH File Transfer Protocol (SFTP) support for Azure Blob Storage](secure-file-transfer-protocol-known-issues.md) if you're having trouble connecting. This list isn't exhaustive and may change over time.
 
 - AsyncSSH 2.1.0+
 - Axway
@@ -155,8 +155,9 @@ The following clients have compatible algorithm support with SFTP for Azure Blob
 - XFB.Gateway
 - JSCH 0.1.54+
 - curl 7.85.0+
+- AIX<sup>1</sup>
 
-The supported client list above isn't exhaustive and may change over time.
+<sup>1</sup>    Must set `AllowPKCS12KeystoreAutoOpen` option to `no`.
 
 ## Limitations and known issues