KVM: arm64: ptdump: Make KVM ptdump code s2 mmu aware

KVM: arm64: ptdump: Make KVM ptdump code s2 mmu aware

To reuse the ptdump code for shadow page table dumping later, let's pass
s2 mmu as the private data, so we have the freedom to select which page
table to print.

Signed-off-by: Wei-Lin Chang <weilin.chang@arm.com>
Reviewed-by: Joey Gouly <joey.gouly@arm.com>
Link: https://patch.msgid.link/20260317182638.1592507-2-weilin.chang@arm.com
Signed-off-by: Marc Zyngier <maz@kernel.org>