SecurityPkg: Tcg2Smm: Make TCG2 PP version configurable

Make TCG2 PP version configurable to meet different request. Current default version is 1.3.
http://www.trustedcomputinggroup.org/physical-presence-interface_1-30_0-52/

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Chao Zhang <chao.b.zhang@intel.com>
Reviewed-by: Yao Jiewen <jiewen.yao@intel.com>

SecurityPkg/Tcg/Tcg2Smm/Tpm.asl

@@ -2,7 +2,7 @@
   The TPM2 definition block in ACPI table for TCG2 physical presence  
   and MemoryClear.
 
-Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2015 - 2016, Intel Corporation. All rights reserved.<BR>
 (c)Copyright 2016 HP Development Company, L.P.<BR>
 This program and the accompanying materials 
 are licensed and made available under the terms and conditions of the BSD License 
@@ -188,7 +188,7 @@ DefinitionBlock (
             //
             // a) Get Physical Presence Interface Version
             //
-            Return ("1.3")
+            Return ("$PV")
           }
           Case (2)
           {