ice: fix function comment referring to ice_vsi_alloc

Since commit 1d2e32275de7 ("ice: split ice_vsi_setup into smaller
functions") ice_vsi_alloc has not been responsible for all of the behavior
implied by the comment for ice_vsi_setup_vector_base.

Fix the comment to refer to the new function ice_vsi_alloc_def().
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

drivers/net/ethernet/intel/ice/ice_lib.c

@@ -1527,7 +1527,7 @@ static int ice_get_vf_ctrl_res(struct ice_pf *pf, struct ice_vsi *vsi)
  * ice_vsi_setup_vector_base - Set up the base vector for the given VSI
  * @vsi: ptr to the VSI
  *
- * This should only be called after ice_vsi_alloc() which allocates the
+ * This should only be called after ice_vsi_alloc_def() which allocates the
  * corresponding SW VSI structure and initializes num_queue_pairs for the
  * newly allocated VSI.
  *