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>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index eb9fc2f..25541a1 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -640,6 +640,7 @@
 config ARCH_TEGRA
 	bool "NVIDIA Tegra"
 	select ARCH_HAS_CPUFREQ
+	select ARCH_REQUIRE_GPIOLIB
 	select CLKDEV_LOOKUP
 	select CLKSRC_MMIO
 	select CLKSRC_OF