v3/ec/docs: update docs with new functionality
Update the main README to remove notes about some of the chips on
the I2C_1 bus, and to clarify that `stm32reset` will be going away
on Proto 1.
Update the videomux documentation to show the DisplayPort to IT68051
TEST=Build the firmware as directed in README and flash to the board.
Do the steps in the "DisplayPort to IT68051" section of videomux to
see it working.
Tested-by: Paul Fagerburg <email@example.com>
Reviewed-by: Alexandru M Stan <firstname.lastname@example.org>
Commit-Queue: Paul Fagerburg <email@example.com>
5 files changed