misc: isl29020: add missed pm_runtime_disable

The driver forgets to call pm_runtime_disable in remove.
Add the missed call to fix it.
Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Link: https://lore.kernel.org/r/20191118080931.30749-1-hslester96@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/misc/isl29020.c

@@ -173,6 +173,7 @@ static int  isl29020_probe(struct i2c_client *client,
 
 static int isl29020_remove(struct i2c_client *client)
 {
+	pm_runtime_disable(&client->dev);
 	sysfs_remove_group(&client->dev.kobj, &m_als_gr);
 	return 0;
 }