Added 2 new PCDs for minimal and maximal valid year in RTC.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Elvin Li <elvin.li@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>


git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16642 6f19259b-4bc3-4df7-8a09-765794883524

PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtc.c

@@ -1,7 +1,7 @@
 /** @file
   RTC Architectural Protocol GUID as defined in DxeCis 0.96.
 
-Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
 This program and the accompanying materials
 are licensed and made available under the terms and conditions of the BSD License
 which accompanies this distribution.  The full text of the license may be found at
@@ -955,8 +955,8 @@ RtcTimeFieldsValid (
   IN EFI_TIME *Time
   )
 {
-  if (Time->Year < 1998 ||
-      Time->Year > 2099 ||
+  if (Time->Year < PcdGet16 (PcdMinimalValidYear) ||
+      Time->Year > PcdGet16 (PcdMaximalValidYear) ||
       Time->Month < 1 ||
       Time->Month > 12 ||
       (!DayValid (Time)) ||