control: Trace around enabling events
Add flight recorder entries before and after fan control events are
enabled on startup. This can be used for debug to tell how long the
enables take.
e.g.
```
"Jan 10 16:03:11.329067: main: Enabling events",
"Jan 10 16:03:11.385515: zone-floor0: mapped_floor-70(Fan floors) is setting floor hold to 7300",
"Jan 10 16:03:11.385534: zone-floor0: Setting new floor to 7300",
"Jan 10 16:03:13.951341: main: Done enabling events",
```
Signed-off-by: Matt Spinler <spinler@us.ibm.com>
Change-Id: I5753617a38972b28ab12b314576c8774ee73c37e
1 file changed