hid: intel-ish-hid: use dev_groups and not dev_attrs for bus_type

The dev_attrs field has long been "depreciated" and is finally being
removed, so move the driver to use the "correct" dev_groups field
instead for struct bus_type.

Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Acked-by: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: Wei Yongjun <weiyj.lk@gmail.com>
Cc: Bhumika Goyal <bhumirks@gmail.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: <linux-input@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/hid/intel-ish-hid/ishtp/bus.c

@@ -321,11 +321,13 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *a,
 	len = snprintf(buf, PAGE_SIZE, "ishtp:%s\n", dev_name(dev));
 	return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
 }
+static DEVICE_ATTR_RO(modalias);
 
-static struct device_attribute ishtp_cl_dev_attrs[] = {
-	__ATTR_RO(modalias),
-	__ATTR_NULL,
+static struct attribute *ishtp_cl_dev_attrs[] = {
+	&dev_attr_modalias.attr,
+	NULL,
 };
+ATTRIBUTE_GROUPS(ishtp_cl_dev);
 
 static int ishtp_cl_uevent(struct device *dev, struct kobj_uevent_env *env)
 {
@@ -346,7 +348,7 @@ static const struct dev_pm_ops ishtp_cl_bus_dev_pm_ops = {
 
 static struct bus_type ishtp_cl_bus_type = {
 	.name		= "ishtp",
-	.dev_attrs	= ishtp_cl_dev_attrs,
+	.dev_groups	= ishtp_cl_dev_groups,
 	.probe		= ishtp_cl_device_probe,
 	.remove		= ishtp_cl_device_remove,
 	.pm		= &ishtp_cl_bus_dev_pm_ops,