ARM: tegra: defconfig: Enable tps6586x gpio

Enable GPIO_TPS6586X as the gpio functionality of
this device moved as platform driver.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

arch/arm/configs/tegra_defconfig

@@ -106,6 +106,7 @@ CONFIG_I2C=y
 CONFIG_I2C_TEGRA=y
 CONFIG_SPI=y
 CONFIG_SPI_TEGRA=y
+CONFIG_GPIO_TPS6586X=y
 CONFIG_POWER_SUPPLY=y
 CONFIG_BATTERY_SBS=y
 CONFIG_SENSORS_LM90=y