arm64: mm: drop addr parameter from sync icache and dcache

The addr parameter isn't used for anything. Let's simplify and get rid of
it, like arm.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>