uboot-phytec

env: Kconfig: Add environment default offset in versal

This patch adds default offset & sector size values for environment
variables to save in qspi/ospi flash for versal.

Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>