net/mlx5e: Use __set_bit for adaptive-moderation bit in RQ state

Make the code more clear by replacing the existing code with __set_bit.
Signed-off-by: NGal Pressman <galp@mellanox.com>
Signed-off-by: NTariq Toukan <tariqt@mellanox.com>
Signed-off-by: NSaeed Mahameed <saeedm@mellanox.com>

drivers/net/ethernet/mellanox/mlx5/core/en_main.c

@@ -820,7 +820,7 @@ static int mlx5e_open_rq(struct mlx5e_channel *c,
 		goto err_destroy_rq;
 
 	if (params->rx_dim_enabled)
-		c->rq.state |= BIT(MLX5E_RQ_STATE_AM);
+		__set_bit(MLX5E_RQ_STATE_AM, &c->rq.state);
 
 	return 0;