irqdomain: Export irq_domain_set_info() for module use

Export irq_domain_set_info() for module use. It will be used by the Volume
Management Device driver.

[bhelgaas: changelog]
Signed-off-by: Keith Busch <[e-mail]>
Signed-off-by: Bjorn Helgaas <[e-mail]>
Acked-by: Thomas Gleixner <[e-mail]>

kernel/irq/irqdomain.c

···
 	__irq_set_handler(virq, handler, 0, handler_name);
 	irq_set_handler_data(virq, handler_data);
 }
+EXPORT_SYMBOL(irq_domain_set_info);
 
 /**
  * irq_domain_reset_irq_data - Clear hwirq, chip and chip_data in @irq_data