Modification done as per Linux Kernel v5.10.8
- Modified boot.cmd and boot.debug.cmd to use env import and env export instead of saveenv. Minor modification done to suit target specific requirements.
- Disabled compiling Wireguard module in global.config, because kernel version 5.6 and later has built-in support for Wireguard.
- Modified Linux kernel configuration file as per v5.10.8.
- Added README.linux for instructions on generating linux config using fragments.