hvmloader: Fix comment style in ssdt_tpm.asl

Signed-off-by: Keir Fraser <keir.fraser@citrix.com>

tools/firmware/hvmloader/acpi/ssdt_tpm.asl

@@ -1,21 +1,23 @@
-//**********************************************************************//
-//*
-//* Copyright (c) 2006, IBM Corporation.
-//*
-//* This program is free software; you can redistribute it and/or modify it
-//* under the terms and conditions of the GNU General Public License,
-//* version 2, as published by the Free Software Foundation.
-//*
-//* This program is distributed in the hope it will be useful, but WITHOUT
-//* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-//* FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
-//* more details.
-//*
-//* You should have received a copy of the GNU General Public License along with
-//* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
-//* Place - Suite 330, Boston, MA 02111-1307 USA.
+/*
+ * ssdt_tpm.asl
+ *
+ * Copyright (c) 2006, IBM Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+ * Place - Suite 330, Boston, MA 02111-1307 USA.
+ */
 
-//*  SSDT for TPM TIS Interface for Xen with Qemu device model
+/* SSDT for TPM TIS Interface for Xen with Qemu device model. */
 
 DefinitionBlock ("SSDT_TPM.aml", "SSDT", 2, "Xen", "HVM", 0)
 {