Change extension name and publisher for Linux FDE testing

Author: Kamran Khan

src/ResourceManager/Compute/Commands.Compute/Extension/AzureDiskEncryption/AzureDiskEncryptionExtensionContext.cs

@@ -23,8 +23,8 @@ namespace Microsoft.Azure.Commands.Compute.Extension.AzureDiskEncryption
     /// </summary>
     public class AzureDiskEncryptionExtensionContext : PSVirtualMachineExtension
     {
-        public const string LinuxExtensionDefaultPublisher = "Microsoft.OSTCExtensions";
-        public const string LinuxExtensionDefaultName = "AzureDiskEncryptionForLinux";
+        public const string LinuxExtensionDefaultPublisher = "Microsoft.Azure.Security";
+        public const string LinuxExtensionDefaultName = "AzureDiskEncryptionForLinuxTest";
         public const string LinuxExtensionDefaultVersion = "0.1";
 
         public const string ExtensionDefaultPublisher = "Microsoft.Azure.Security";