net/mlx5: When fetching CQEs return CQE instead of void pointer

The function is only used to retrieve CQEs, use the proper type as the
return value.
Signed-off-by: NDaniel Jurgens <danielj@mellanox.com>
Signed-off-by: NSaeed Mahameed <saeedm@mellanox.com>

drivers/net/ethernet/mellanox/mlx5/core/wq.h

@@ -177,7 +177,7 @@ static inline u32 mlx5_cqwq_get_ci(struct mlx5_cqwq *wq)
 	return mlx5_cqwq_ctr2ix(wq, wq->cc);
 }
 
-static inline void *mlx5_cqwq_get_wqe(struct mlx5_cqwq *wq, u32 ix)
+static inline struct mlx5_cqe64 *mlx5_cqwq_get_wqe(struct mlx5_cqwq *wq, u32 ix)
 {
 	return mlx5_frag_buf_get_wqe(&wq->fbc, ix);
 }