ArmPkg: Create MpCoreInfo PPI and HOB to describe CPU Cores on a MPCore platform

These info are:
- ClusterId, CoreId
- MailBox Set/Get/Clear address



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12423 6f19259b-4bc3-4df7-8a09-765794883524

ArmPkg/Drivers/CpuDxe/CpuDxe.inf

@@ -27,6 +27,7 @@
 [Sources.ARM]
   CpuDxe.c
   CpuDxe.h
+  CpuMpCore.c
   Exception.c
 
 #
@@ -40,7 +41,7 @@
 #
   ExceptionSupport.ARMv6.asm | RVCT
   ExceptionSupport.ARMv6.S   | GCC
-  Mmu.c
+  Mmu.c  
 
 
 [Packages]
@@ -50,13 +51,16 @@
   MdeModulePkg/MdeModulePkg.dec
 
 [LibraryClasses]
+  ArmLib
   BaseMemoryLib
   CacheMaintenanceLib
   CpuLib
   DebugLib
   DefaultExceptionHandlerLib
   DxeServicesTableLib
+  HobLib
   PeCoffGetEntryPointLib
+  UefiDriverEntryPoint
   UefiLib
 
 [Protocols]
@@ -66,6 +70,7 @@
 
 [Guids]
   gEfiDebugImageInfoTableGuid
+  gArmMpCoreInfoGuid
   gIdleLoopEventGuid
 
 [Pcd.common]