platform/mellanox: nvsw-sn2201: Fix bus number in adapter error message

change error log to use correct bus number from main_mux_devs
instead of cpld_devs.

Fixes: 662f248 ("platform/mellanox: Add support for new SN2201 system")
Signed-off-by: Alok Tiwari <alok.a.tiwari@oracle.com>
Reviewed-by: Vadim Pasternak <vadimp@nvidia.com>
Link: https://lore.kernel.org/r/20250622072921.4111552-2-alok.a.tiwari@oracle.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

Author: aloktiwa

drivers/platform/mellanox/nvsw-sn2201.c

@@ -1181,7 +1181,7 @@ static int nvsw_sn2201_i2c_completion_notify(void *handle, int id)
 	if (!nvsw_sn2201->main_mux_devs->adapter) {
 		err = -ENODEV;
 		dev_err(nvsw_sn2201->dev, "Failed to get adapter for bus %d\n",
-			nvsw_sn2201->cpld_devs->nr);
+			nvsw_sn2201->main_mux_devs->nr);
 		goto i2c_get_adapter_main_fail;
 	}