ArmPkg: Move cache defs used in Universal/Smbios into ArmCache.h

Many of the cache definitions in ArmLibPrivate.h are being used outside
of ArmLib, in Universal/Smbios. Move them into ArmCache.h to make them
public, and remove the include of ArmLibPrivate.h from files in
Universal/Smbios.

Signed-off-by: Rebecca Cran <rebecca@nuviainc.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Leif Lindholm <leif@nuviainc.com>

ArmPkg/Universal/Smbios/ProcessorSubClassDxe/SmbiosProcessorArm.c

@@ -8,8 +8,8 @@
 **/
 
 #include <Uefi.h>
+#include <IndustryStandard/ArmCache.h>
 #include <Library/ArmLib.h>
-#include <Library/ArmLib/ArmLibPrivate.h>
 
 #include "SmbiosProcessor.h"