tree 4b2a8bd4a0e0bf14fb31743ca69e00ee57e82583
parent 8dbb395364629673a1f1dde81b1cf7d8041b0662
author James Feist <james.feist@linux.intel.com> 1557866529 -0700
committer James Feist <james.feist@linux.intel.com> 1559060311 +0000

Add logging for Fan Presence / Redundancy

Add logging and fix bug with shared_ptr usage. We
now use a std::optional * to the shared redundancy
object, so that it can 1. point to object / null and 2.
exist in config or not.

Tested: cat /var/log/redfish to see logs made by removing
and adding fans, and using sensor override to change
redundancy.

Change-Id: Ic4b319cf7484cbbd7ce7dbdf7556f48bebe11cb0
Signed-off-by: James Feist <james.feist@linux.intel.com>