exception: switch sdbusplus type
exception: switch sdbusplus type

The exceptions defined in error-HostEvent.hpp are "by-hand" versions
of classes that would come from sdbus++/PDI.  sdbusplus now uses a
different exception base class for generated exceptions[1], so switch
the local versions here to match.

1. https://github.com/openbmc/sdbusplus/commit/15228663a1e1f27729a5e55c8d775f3537ab8444

Signed-off-by: Patrick Williams <cbb7353e6d953ef360baf960c122346276c6e320@stwcx.xyz>
Change-Id: I713e0376b5cc60e6ffc865925b87eb9df4669b7c

openbmc/phosphor-host-ipmid,openbmc/phosphor-host-ipmid,openbmc/phosphor-host-ipmid