pci: pci-host-generic: Use INVALID_PHYS_ADDR instead of ~0

This update is better be squashed into commit b8b9fcf5
("pci: Make all ones invalid translate address")

Cc: Thomas Huth <thuth@redhat.com>
Cc: Andrew Jones <drjones@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>