V4L/DVB: ir-core: export driver name used by IR via uevent

Now, both driver and keytable names are exported to userspace. This
will help userspace to decide when a table need to be replaced
by another one.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/IR/ir-sysfs.c b/drivers/media/IR/ir-sysfs.c
index 6d63657..0592515 100644
--- a/drivers/media/IR/ir-sysfs.c
+++ b/drivers/media/IR/ir-sysfs.c
@@ -140,6 +140,8 @@
 
 	if (ir_dev->rc_tab.name)
 		ADD_HOTPLUG_VAR("NAME=\"%s\"", ir_dev->rc_tab.name);
+	if (ir_dev->driver_name)
+		ADD_HOTPLUG_VAR("DRV_NAME=\"%s\"", ir_dev->driver_name);
 
 	return 0;
 }