irq_domain/x86: Convert x86 (embedded) to use common irq_domain

This patch removes the x86-specific definition of irq_domain and replaces
it with the common implementation.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
diff --git a/drivers/net/phy/mdio-gpio.c b/drivers/net/phy/mdio-gpio.c
index 50e8e5e..7189adf 100644
--- a/drivers/net/phy/mdio-gpio.c
+++ b/drivers/net/phy/mdio-gpio.c
@@ -255,13 +255,13 @@
 	return platform_driver_register(&mdio_ofgpio_driver);
 }
 
-static inline void __exit mdio_ofgpio_exit(void)
+static inline void mdio_ofgpio_exit(void)
 {
 	platform_driver_unregister(&mdio_ofgpio_driver);
 }
 #else
 static inline int __init mdio_ofgpio_init(void) { return 0; }
-static inline void __exit mdio_ofgpio_exit(void) { }
+static inline void mdio_ofgpio_exit(void) { }
 #endif /* CONFIG_OF_GPIO */
 
 static struct platform_driver mdio_gpio_driver = {