Add Fan Redundancy Support

This adds fan redundancy support to passive sensors.
If there are redundancy interfaces on dbus, we'll fail
a sensor if the status is set to failed.

Tested: Set Redundancy to Failed On Dbus, saw all fans
in collection boost. Then restarted swampd, came up
and still boosted. Set redundancy OK, and they all slowed
down.

Change-Id: I8879bef1471bbc168435d6b22dd20006b9dca133
Signed-off-by: James Feist <james.feist@linux.intel.com>
diff --git a/Makefile.am b/Makefile.am
index 241878c..3283236 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -79,6 +79,7 @@
 	notimpl/readonly.cpp \
 	notimpl/writeonly.cpp \
 	dbus/util.cpp \
+	dbus/dbuspassiveredundancy.cpp \
 	dbus/dbuspassive.cpp \
 	dbus/dbusactiveread.cpp \
 	dbus/dbuswrite.cpp \