net/mlx5e: TC, Fix cloned flow attr instance dests are not zeroed

On multi table split the driver creates a new attr instance with
data being copied from prev attr instance zeroing action flags.
Also need to reset dests properties to avoid incorrect dests per attr.

Fixes: 8300f22 ("net/mlx5e: Create new flow attr for multi table actions")
Signed-off-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Maor Dickman <maord@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Link: https://lore.kernel.org/r/20221026135153.154807-10-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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

@@ -3633,6 +3633,10 @@ mlx5e_clone_flow_attr_for_post_act(struct mlx5_flow_attr *attr,
 	attr2->action = 0;
 	attr2->flags = 0;
 	attr2->parse_attr = parse_attr;
+	attr2->esw_attr->out_count = 0;
+	attr2->esw_attr->split_count = 0;
+	attr2->dest_chain = 0;
+	attr2->dest_ft = NULL;
 	return attr2;
 }