ChromeOS EC vboot context support

modulename: cros_ec_vbc.ko

configname: CONFIG_CROS_EC_VBC

Linux Kernel Configuration
└─>Device Drivers
└─>Platform support for Chrome hardware
└─>Device Tree and Open Firmware support
└─>ChromeOS EC vboot context support
In linux kernel since version 5.1 (release Date: 2019-05-05)  
This option exposes the ChromeOS EC vboot context nvram to
userspace.

To compile this driver as a module, choose M here: the
module will be called cros_ec_vbc.

source code: