x86/EPT: also force EMT re-evaluation if pinned ranges change

x86/EPT: also force EMT re-evaluation if pinned ranges change

This was inadvertently left out of aa9114ed ("x86/EPT: force
re-evaluation of memory type as necessary"). Note that this
intentionally doesn't use memory_type_changed(): Changes to the pinned
ranges are independent of IOMMU presence, which that function uses to
determine whether to call the underlying p2m_memory_type_changed().

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Tim Deegan <tim@xen.org>