net/mlx5e: Fix page allocation failure for trap-RQ over SF

Set the correct device pointer to the trap-RQ, to allow access to
dma_mask and avoid allocation request with the wrong pci-dev.

WARNING: CPU: 1 PID: 12005 at kernel/dma/mapping.c:151 dma_map_page_attrs+0x139/0x1c0
...
all Trace:
<IRQ>
? __page_pool_alloc_pages_slow+0x5a/0x210
mlx5e_post_rx_wqes+0x258/0x400 [mlx5_core]
mlx5e_trap_napi_poll+0x44/0xc0 [mlx5_core]
__napi_poll+0x24/0x150
net_rx_action+0x22b/0x280
__do_softirq+0xc7/0x27e
do_softirq+0x61/0x80
</IRQ>
__local_bh_enable_ip+0x4b/0x50
mlx5e_handle_action_trap+0x2dd/0x4d0 [mlx5_core]
blocking_notifier_call_chain+0x5a/0x80
mlx5_devlink_trap_action_set+0x8b/0x100 [mlx5_core]

Fixes: 5543e989 ("net/mlx5e: Add trap entity to ETH driver")
Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

drivers/net/ethernet/mellanox/mlx5/core/en/trap.c

@@ -37,7 +37,7 @@ static void mlx5e_init_trap_rq(struct mlx5e_trap *t, struct mlx5e_params *params
 	struct mlx5e_priv *priv = t->priv;
 
 	rq->wq_type      = params->rq_wq_type;
-	rq->pdev         = mdev->device;
+	rq->pdev         = t->pdev;
 	rq->netdev       = priv->netdev;
 	rq->priv         = priv;
 	rq->clock        = &mdev->clock;