mei: bus: demote error on connect

There are flows, like exit from D3cold where connect via bus can fail.
Demote error print to debug level to unclutter dmesg.

Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20250918130435.3327400-5-alexander.usyskin@intel.com

Author: ausyskin

drivers/misc/mei/bus.c

@@ -814,7 +814,7 @@ int mei_cldev_enable(struct mei_cl_device *cldev)
 
 	ret = mei_cl_connect(cl, cldev->me_cl, NULL);
 	if (ret < 0) {
-		dev_err(&cldev->dev, "cannot connect\n");
+		dev_dbg(&cldev->dev, "cannot connect\n");
 		mei_cl_bus_vtag_free(cldev);
 	}