i40e: point wb_desc at the nvm_wb_desc during i40e_read_nvm_aq

When introducing the functions to read the NVM through the AdminQ, we
did not correctly mark the wb_desc.

Fixes: 7073f46e ("i40e: Add AQ commands for NVM Update for X722", 2015-06-05)
Signed-off-by: NJacob Keller <jacob.e.keller@intel.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/intel/i40e/i40e_nvm.c

@@ -230,6 +230,7 @@ static i40e_status i40e_read_nvm_aq(struct i40e_hw *hw, u8 module_pointer,
 	struct i40e_asq_cmd_details cmd_details;
 
 	memset(&cmd_details, 0, sizeof(cmd_details));
+	cmd_details.wb_desc = &hw->nvm_wb_desc;
 
 	/* Here we are checking the SR limit only for the flat memory model.
 	 * We cannot do it for the module-based model, as we did not acquire