net: ena: cosmetic: set queue sizes to u32 for consistency

Make all types of variables that convey the number and sizeof queues to
be u32, for consistency with the API between the driver and device via
ena_admin_defs.h:ena_admin_get_feat_resp.max_queue_ext fields. Current
code sometimes uses int and there are multiple assignments between these
variables with different types.
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/amazon/ena/ena_netdev.c

@@ -3832,11 +3832,11 @@ static void ena_timer_service(struct timer_list *t)
 	mod_timer(&adapter->timer_service, round_jiffies(jiffies + HZ));
 }
 
-static int ena_calc_max_io_queue_num(struct pci_dev *pdev,
+static u32 ena_calc_max_io_queue_num(struct pci_dev *pdev,
 				     struct ena_com_dev *ena_dev,
 				     struct ena_com_dev_get_features_ctx *get_feat_ctx)
 {
-	int io_tx_sq_num, io_tx_cq_num, io_rx_num, max_num_io_queues;
+	u32 io_tx_sq_num, io_tx_cq_num, io_rx_num, max_num_io_queues;
 
 	if (ena_dev->supported_features & BIT(ENA_ADMIN_MAX_QUEUES_EXT)) {
 		struct ena_admin_queue_ext_feature_fields *max_queue_ext =