genirq/irqdomain: Make irq_domain_disassociate() static

No users outside of the core code.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/87a6vja7mb.fsf@nanos.tec.linutronix.de

diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index 9c9cb88..3d7463f 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -496,7 +496,7 @@ static void irq_domain_set_mapping(struct irq_domain *domain,
 	}
 }
 
-void irq_domain_disassociate(struct irq_domain *domain, unsigned int irq)
+static void irq_domain_disassociate(struct irq_domain *domain, unsigned int irq)
 {
 	struct irq_data *irq_data = irq_get_irq_data(irq);
 	irq_hw_number_t hwirq;