PcAtChipsetPkg: INF/DEC file updates to EDK II packages

1. Usage information in INF file comment blocks are either incomplete or incorrect.  
This includes usage information for Protocols/PPIs/GUIDs/PCDs/HOBs/Events/BootModes.  
The syntax for usage information in comment blocks is defined in the EDK II Module Information (INF) Specification

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Qiu, Shumin <shumin.qiu@intel.com>
Reviewed-by: Gao, Liming <liming.gao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15942 6f19259b-4bc3-4df7-8a09-765794883524

PcAtChipsetPkg/8259InterruptControllerDxe/8259.inf

@@ -1,7 +1,7 @@
 ## @file
-# 8259 Interrupt Controller driver
+# 8259 Interrupt Controller driver that provides Legacy 8259 protocol.
 #
-# Copyright (c) 2005 - 2011, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2005 - 2014, 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        
@@ -15,6 +15,7 @@
 [Defines]
   INF_VERSION                    = 0x00010005
   BASE_NAME                      = Legacy8259
+  MODULE_UNI_FILE                = Legacy8259.uni
   FILE_GUID                      = 79CA4208-BBA1-4a9a-8456-E1E66A81484E
   MODULE_TYPE                    = DXE_DRIVER
   VERSION_STRING                 = 1.0
@@ -38,12 +39,14 @@
   
 [Protocols]
   gEfiLegacy8259ProtocolGuid                    # PROTOCOL ALWAYS_PRODUCED
-  gEfiPciIoProtocolGuid
+  gEfiPciIoProtocolGuid                         ## SOMETIMES_CONSUMES
 
 [Pcd]
-  gPcAtChipsetPkgTokenSpaceGuid.Pcd8259LegacyModeMask
-  gPcAtChipsetPkgTokenSpaceGuid.Pcd8259LegacyModeEdgeLevel
+  gPcAtChipsetPkgTokenSpaceGuid.Pcd8259LegacyModeMask      ## CONSUMES
+  gPcAtChipsetPkgTokenSpaceGuid.Pcd8259LegacyModeEdgeLevel ## CONSUMES
   
 [Depex]
   TRUE
 
+[UserExtensions.TianoCore."ExtraFiles"]
+  Legacy8259Extra.uni