net/vmxnet3: fix Rx queue interrupts on FreeBSD

Interrupts disabled on FreeBSD for the vmxnet3 driver as they are not
supported. Rx queue interrupts were missed by this change, don't
attempt to enable them on FreeBSD.

Without this change applications enabling interrupts encounter an
immediate abort on FreeBSD.

Fixes: 40d5676 ("net/vmxnet3: fix initialization on FreeBSD")
Cc: stable@dpdk.org

Signed-off-by: Tom Jones <thj@freebsd.org>
Acked-by: Ferruh Yigit <ferruh.yigit@amd.com>

drivers/net/vmxnet3/vmxnet3_ethdev.c

@@ -1936,11 +1936,13 @@ vmxnet3_interrupt_handler(void *param)
 static int
 vmxnet3_dev_rx_queue_intr_enable(struct rte_eth_dev *dev, uint16_t queue_id)
 {
+#ifndef RTE_EXEC_ENV_FREEBSD
 	struct vmxnet3_hw *hw = dev->data->dev_private;
 
 	vmxnet3_enable_intr(hw,
 			    rte_intr_vec_list_index_get(dev->intr_handle,
 							       queue_id));
+#endif
 
 	return 0;
 }