ARM: tegra: enable ARCH_REQUIRE_GPIOLIB for Tegra114

CONFIG_ARCH_TEGRA_114_SOC doesn't currently enable gpiolib, which causes
numerous build problems building a Tegra kernel with only Tegra114
enabled, and not Tegra20 or Tegra30. Enable ARCH_REQUIRE_GPIOLIB to
solve this. However, all Tegra will use gpiolib, so select this option
from ARCH_TEGRA rather than each individual ARCH_TEGRA_*_SOC, to
prevent this problem for any future chips.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>

arch/arm/Kconfig

@@ -640,6 +640,7 @@ config ARCH_LPC32XX
 config ARCH_TEGRA
 	bool "NVIDIA Tegra"
 	select ARCH_HAS_CPUFREQ
+	select ARCH_REQUIRE_GPIOLIB
 	select CLKDEV_LOOKUP
 	select CLKSRC_MMIO
 	select CLKSRC_OF

arch/arm/mach-tegra/Kconfig

@@ -5,7 +5,6 @@ comment "NVIDIA Tegra options"
 config ARCH_TEGRA_2x_SOC
 	bool "Enable support for Tegra20 family"
 	select ARCH_NEEDS_CPU_IDLE_COUPLED if SMP
-	select ARCH_REQUIRE_GPIOLIB
 	select ARM_ERRATA_720789
 	select ARM_ERRATA_742230 if SMP
 	select ARM_ERRATA_751472
@@ -27,7 +26,6 @@ config ARCH_TEGRA_2x_SOC
 
 config ARCH_TEGRA_3x_SOC
 	bool "Enable support for Tegra30 family"
-	select ARCH_REQUIRE_GPIOLIB
 	select ARM_ERRATA_743622
 	select ARM_ERRATA_751472
 	select ARM_ERRATA_754322