Timer to decrease fan speeds

Create a repeating timer for decreasing fan speeds where the fan speeds
in the zone are decreased when the timer expires and a decrease speed
request exists with no increase request present or active.

Change-Id: I419592f6f50c0ed524f8bf3ebf183854ab5ef2ea
Signed-off-by: Matthew Barth <msbarth@us.ibm.com>
diff --git a/control/manager.hpp b/control/manager.hpp
index 521b4cd..d5b75fc 100644
--- a/control/manager.hpp
+++ b/control/manager.hpp
@@ -36,9 +36,11 @@
          * _zoneLayouts data.
          *
          * @param[in] bus - The dbus object
+         * @param[in] events - The sd_event pointer
          * @param[in] mode - The control mode
          */
         Manager(sdbusplus::bus::bus& bus,
+                phosphor::fan::event::EventPtr& events,
                 Mode mode);
 
         /**