PM / Hibernate: print physical addresses consistently with other parts of kernel

Print physical address info in a style consistent with the %pR style
used elsewhere in the kernel.

Commit 69f1d475

 did this for a similar printk in this file, but I
must have missed this one.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>