gpio: ab8500: Mark broken

This driver is broken in several aspects.

1) old style irq_chip functions. Sigh

2) Abuse of the unlock callback. That's not supposed to be a state
machine for evrything and some more.

Signed-off-by: Thomas Gleixner <[e-mail]>

drivers/gpio/Kconfig

···
 
 config AB8500_GPIO
 	bool "ST-Ericsson AB8500 Mixed Signal Circuit gpio functions"
-	depends on AB8500_CORE
+	depends on AB8500_CORE && BROKEN
 	help
 	  Select this to enable the AB8500 IC GPIO driver
 endif