See https://www.kernel.org/doc/Documentation/i2c/ for details.
This creates common interface for I2C access functions, and adds
implementation for linux I2C functions.
BUG=b:148746232
BRANCH=none
TEST=build success
Signed-off-by: Shiyu Sun <sshiyu@chromium.org>
Change-Id: Ie0487824dfb71970bede17f617dbbb30ddf78c12
Reviewed-on: https://review.coreboot.org/c/flashrom/+/39686
Tested-by: Edward O'Callaghan <quasisec@chromium.org>
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
