ARM: tegra: add port FF to GPIO IDs

NVIDIA Tegra124 supports has the new GPIO port as GPIO_FF.
Add the macro for this port name.
Signed-off-by: NAshwini Ghuge <aghuge@nvidia.com>
Signed-off-by: NLaxman Dewangan <ldewangan@nvidia.com>
Reviewed-by: NThierry Reding <treding@nvidia.com>
Signed-off-by: NStephen Warren <swarren@nvidia.com>

include/dt-bindings/gpio/tegra-gpio.h

@@ -43,6 +43,7 @@
 #define TEGRA_GPIO_BANK_ID_CC 28
 #define TEGRA_GPIO_BANK_ID_DD 29
 #define TEGRA_GPIO_BANK_ID_EE 30
+#define TEGRA_GPIO_BANK_ID_FF 31
 
 #define TEGRA_GPIO(bank, offset) \
 	((TEGRA_GPIO_BANK_ID_##bank * 8) + offset)