genirq: Generic irq chip requires IRQ_DOMAIN

The generic_chip.c uses interfaces from irq_domain.c which is
controlled by the IRQ_DOMAIN config option, but there is no Kconfig
dependency so the build can fail:

linux/kernel/irq/generic-chip.c:400:11: error:
'irq_domain_xlate_onetwocell' undeclared here (not in a function)

Select IRQ_DOMAIN when GENERIC_IRQ_CHIP is selected.

Signed-off-by: Nitin A Kamble <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>
Cc: [email protected] # 3.11+

Author: Nitin A Kamble

kernel/irq/Kconfig

@@ -40,6 +40,7 @@ config IRQ_EDGE_EOI_HANDLER
 # Generic configurable interrupt chip implementation
 config GENERIC_IRQ_CHIP
        bool
+       select IRQ_DOMAIN
 
 # Generic irq_domain hw <--> linux irq number translation
 config IRQ_DOMAIN