net/mlx5: Add support for plugged-disabled cable status in PME

Support a new hardware module status in port module events:
- module_status=0x4 (Cable plugged, but disabled)
Signed-off-by: Mikhael Goikhman <migo@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

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

@@ -166,6 +166,8 @@ static const char *mlx5_pme_status_to_string(enum port_module_event_status_type
 		return "Cable unplugged";
 	case MLX5_MODULE_STATUS_ERROR:
 		return "Cable error";
+	case MLX5_MODULE_STATUS_DISABLED:
+		return "Cable disabled";
 	default:
 		return "Unknown status";
 	}

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

@@ -51,6 +51,7 @@ enum port_module_event_status_type {
 	MLX5_MODULE_STATUS_PLUGGED   = 0x1,
 	MLX5_MODULE_STATUS_UNPLUGGED = 0x2,
 	MLX5_MODULE_STATUS_ERROR     = 0x3,
+	MLX5_MODULE_STATUS_DISABLED  = 0x4,
 	MLX5_MODULE_STATUS_NUM,
 };