ARC: [TB10x] Updates for GPIO and pinctrl

Device tree and Kconfig updates for GPIO and pinctrl drivers.

Signed-off-by: Christian Ruppert <christian.ruppert@abilis.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>

diff --cc arch/arc/boot/dts/abilis_tb100.dtsi
Simple merge

diff --cc arch/arc/boot/dts/abilis_tb100_dvk.dts
Simple merge

diff --cc arch/arc/boot/dts/abilis_tb101.dtsi
Simple merge

diff --cc arch/arc/boot/dts/abilis_tb101_dvk.dts
Simple merge

diff --cc arch/arc/boot/dts/abilis_tb10x.dtsi
Simple merge

diff --cc arch/arc/plat-tb10x/Kconfig
Simple merge