uboot-phytec

zynqmp: Kconfig: Enable ZYNQ_GPIO for ZynqMP

Enable ZYNQ_GPIO for ZynqMP using Kconfig. It enables the GPIO
driver support for ZynqMP.

Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>