ice: fix usage of incorrect variable

The driver was using rq_last_status where it should have been
using sq_last_status. Fix the string to be using the correct
error reporting variable.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>