commit f3e7047071b3afebbe1813971d6b8de7cd127da6
author Matthew Barth <msbarth@us.ibm.com> Tue Dec 03 13:33:20 2019 -0600
committer Matthew Barth <msbarth@us.ibm.com> Thu Jan 09 11:00:24 2020 -0600
tree f4d09ef4a07f33e458cf1be96665c4b662bbffd7
parent 26ad44a8b11d66b6833a196411043dd4d655bfc6

presence: Reload json config on SIGHUP

Enable capturing the HUP signal to reload the json configuration. This
will reload and process the default json config file, updating the set
of policies to be the same set of policies from when fan presence was
started.

Tested:
    Configuration is reloaded and processed after SIGHUP
    Single set of policies exist that correlate to the json config

Change-Id: I761ac3779baf5b058308d7c565fd117fe052d61c
Signed-off-by: Matthew Barth <msbarth@us.ibm.com>