Fix get fan config command

It was returning an extra byte. Update it to new
api as well.

Tested:

root@intel-obmc:~#  ipmitool raw 0x30 0x8a 0x0
 00 00 04 00 00 00 00

Now returns 7 bytes

Change-Id: I90df4938eda70d7c62c1130b01c1482e32a29ad2
Signed-off-by: James Feist <james.feist@linux.intel.com>
2 files changed