Update Set-PolicyConfig.md

Author: chrisda

exchange/exchange-ps/exchange/Set-PolicyConfig.md

@@ -359,7 +359,10 @@ Accept wildcard characters: False
 ```
 
 ### -ExtendTeamsDlpPoliciesToSharePointOneDrive
-This parameter is reserved for internal Microsoft use.
+The ExtendTeamsDlpPoliciesToSharePointOneDrive parameter enables the Teams DLP Policy to automatically extend protection to the content stored in OneDrive shared in 1:1 chats and content stored in SharePoint associated with Teams teams shared through channel chats. Valid values are:
+
+- $true
+- $false
 
 ```yaml
 Type: Boolean