ARM: 7241/1: mach-ux500 Use CONFIG_ARCH_NR_GPIO

Add default value for CONFIG_ARCH_NR_GPIO to Kconfig and remove the
definition in gpio.h. We can't remove gpio.h yet as asm/gpio.h still
includes it.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index dbd2cb1..4e53bf6 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1568,6 +1568,7 @@
 config ARCH_NR_GPIO
 	int
 	default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
+	default 350 if ARCH_U8500
 	default 0
 	help
 	  Maximum number of GPIOs in the system.