fm10k: Resolve compile warnings with W=1

Fix two cases where variables are being set but not used.

Signed-off-by: Matthew Vick <matthew.vick@intel.com>
Tested-by: Krishneil <Singh&lt;Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>