irqdomain: Fix up const problem in irq_domain_set_name()

In irq_domain_set_name() a const pointer is passed in, and then the
const is "lost" when container_of() is called.  Fix this up by properly
preserving the const pointer attribute when container_of() is used to
enforce the fact that this pointer should not have anything at it
changed.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://patch.msgid.link/2025121731-facing-unhitched-63ae@gregkh

Author: gregkh

kernel/irq/irqdomain.c

@@ -187,7 +187,7 @@ static int irq_domain_set_name(struct irq_domain *domain, const struct irq_domai
 	const struct fwnode_handle *fwnode = info->fwnode;
 
 	if (is_fwnode_irqchip(fwnode)) {
-		struct irqchip_fwid *fwid = container_of(fwnode, struct irqchip_fwid, fwnode);
+		const struct irqchip_fwid *fwid = container_of(fwnode, struct irqchip_fwid, fwnode);
 
 		/*
 		 * The name_suffix is only intended to be used to avoid a name