monitor: Tie fan FRU functional state with `set_func_on_present`

Only update the fan FRU to functional when the fan FRU has been replaced
or a poweroff->poweron has occured while `set_func_on_present`
configuration is set.

Signed-off-by: Matthew Barth <msbarth@us.ibm.com>
Change-Id: I814b29c7d773a403ccf25b8edb9a196528bfb139
2 files changed