ARM: 6915/1: SAMSUNG: Depend on IRQ_GENERIC_CHIP

The generic chip infrastructure has had a Kconfig symbol added so we need
to select that for the kernel to link now we're using the generic IRQ
chip infrastructure.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/plat-samsung/Kconfig

@@ -8,6 +8,7 @@ config PLAT_SAMSUNG
 	bool
 	depends on PLAT_S3C24XX || ARCH_S3C64XX || PLAT_S5P
 	select NO_IOPORT
+	select GENERIC_IRQ_CHIP
 	default y
 	help
 	  Base platform code for all Samsung SoC based systems