fan-monitor: Capture more data on failure

When a fan gets set to nonfunctional, it is useful
to know how fast the rotor was actually going and
what the expected speed was.

Change-Id: I760d6fa7d193038f9740d241bf4d4d0039020f64
Signed-off-by: Matt Spinler <spinler@us.ibm.com>
2 files changed