tree fc02d5367cb797ca6b0a6220b71dcd462065bb17
parent 70176506d64eb4a8f208d4cd7b6983767d3550d4
author Matt Spinler <spinler@us.ibm.com> 1673388311 -0600
committer Matt Spinler <spinler@us.ibm.com> 1673388311 -0600

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