Fix regression: log mem maps around native fault address

Restore the logging of the mem maps around the fault address along
with the rest of the faulting thread's information.  (It was still
being written to the tombstone file, but the logging got dropped on
the floor in the refactoring around AM report integration).

Bug 8654694

Change-Id: Id8851fa765dfe6b6ce41ccfc39e85eaac0acc629