update LFS breaking change warning message (#23543)

Author: yifanz7

src/Storage/Storage.Management/StorageAccount/NewAzureStorageAccount.cs

@@ -288,6 +288,7 @@ public bool EnableAzureActiveDirectoryDomainServicesForFile
         }
         private bool? enableAzureActiveDirectoryDomainServicesForFile = null;
 
+        [CmdletParameterBreakingChangeWithVersion("EnableLargeFileShare", "12.0.0", "7.0.0", ChangeDescription = "EnableLargeFileShare parameter will be deprecated in a future release.")]
         [Parameter(Mandatory = false, HelpMessage = "Indicates whether or not the storage account can support large file shares with more than 5 TiB capacity. Once the account is enabled, the feature cannot be disabled. Currently only supported for LRS and ZRS replication types, hence account conversions to geo-redundant accounts would not be possible. Learn more in https://go.microsoft.com/fwlink/?linkid=2086047")]
         public SwitchParameter EnableLargeFileShare { get; set; }
 

src/Storage/Storage.Management/StorageAccount/SetAzureStorageAccount.cs

@@ -246,7 +246,7 @@ public bool EnableAzureActiveDirectoryDomainServicesForFile
         }
         private bool? enableAzureActiveDirectoryDomainServicesForFile = null;
 
-        [CmdletParameterBreakingChangeWithVersion("EnableLargeFileShare", "11.0.0", "6.0.0", ChangeDescription = "EnableLargeFileShare parameter will be deprecated in a future release.")]
+        [CmdletParameterBreakingChangeWithVersion("EnableLargeFileShare", "12.0.0", "7.0.0", ChangeDescription = "EnableLargeFileShare parameter will be deprecated in a future release.")]
         [Parameter(Mandatory = false, HelpMessage = "Indicates whether or not the storage account can support large file shares with more than 5 TiB capacity. Once the account is enabled, the feature cannot be disabled. Currently only supported for LRS and ZRS replication types, hence account conversions to geo-redundant accounts would not be possible. Learn more in https://go.microsoft.com/fwlink/?linkid=2086047")]
         public SwitchParameter EnableLargeFileShare { get; set; }