uboot-imx

xilinx: zynqmp: Add new target with only nand enabled

This patch adds new target which is called as mini configuration
with only nand functionality and other required basic features enabled.
This will be used to run in system with small footprint and needs
nand support.

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