ArmPkg/ArmMmuLib: remove VirtualMask arg from ArmSetMemoryAttributes

We no longer make use of the ArmMmuLib 'feature' to create aliased
memory ranges with mismatched attributes, and in fact, it was only
wired up in the ARM version to begin with.

So remove the VirtualMask argument from ArmSetMemoryAttributes()'s
prototype, and remove the dead code that referred to it.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>

ArmPkg/Include/Library/ArmMmuLib.h

@@ -66,8 +66,7 @@ EFI_STATUS
 ArmSetMemoryAttributes (
   IN EFI_PHYSICAL_ADDRESS      BaseAddress,
   IN UINT64                    Length,
-  IN UINT64                    Attributes,
-  IN EFI_PHYSICAL_ADDRESS      VirtualMask
+  IN UINT64                    Attributes
   );
 
 #endif