irqchip/renesas-rzg2l: Fix section mismatch

Platform drivers can be probed after their init sections have been
discarded so the irqchip init callbacks must not live in init.

Fixes: d011c02 ("irqchip/renesas-rzg2l: Add support for RZ/Five SoC")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Author: jhovold

drivers/irqchip/irq-renesas-rzg2l.c

@@ -597,14 +597,12 @@ static int rzg2l_irqc_common_init(struct device_node *node, struct device_node *
 	return 0;
 }
 
-static int __init rzg2l_irqc_init(struct device_node *node,
-				  struct device_node *parent)
+static int rzg2l_irqc_init(struct device_node *node, struct device_node *parent)
 {
 	return rzg2l_irqc_common_init(node, parent, &rzg2l_irqc_chip);
 }
 
-static int __init rzfive_irqc_init(struct device_node *node,
-				   struct device_node *parent)
+static int rzfive_irqc_init(struct device_node *node, struct device_node *parent)
 {
 	return rzg2l_irqc_common_init(node, parent, &rzfive_irqc_chip);
 }