zed: Control NVMe fault LEDs

The ZED code currently can only turn on the fault LED for
a faulted disk in a JBOD enclosure. This extends support
for faulted NVMe disks as well.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #12648
Closes #12695