[flashrom-gerrit] Change in flashrom[master]: lspcon_i2c_spi.c: Add SPI-master support for PS17{5,6}

[Shiyu Sun (Code Review)]

Hello build bot (Jenkins), Stefan Reinauer, Edward O'Callaghan,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/flashrom/+/39687

to look at the new patch set (#8).

Change subject: lspcon_i2c_spi.c: Add SPI-master support for PS17{5,6}
......................................................................

lspcon_i2c_spi.c: Add SPI-master support for PS17{5,6}

This adds support for the Parade lspcon usb-c to HDMI protocol
translater part that is i2c-controlled. The support allows the
host to reach the SPI ROM that hangs off the part where it
stores its firmware.

Usage is as follows:
    flashrom -p lspcon_i2c_spi:bus=X
    where X is the bus number.

BUG=b:148746232
BRANCH=none
TEST=tested with following commands, read/write/erase works good.
    flashrom -p lspcon_i2c_spi:bus=7 -r /tmp/foo;
    flashrom -p lspcon_i2c_spi:bus=7 -E;
    flashrom -p lspcon_i2c_spi:bus=7 -w /tmp/foo;

Change-Id: I039e683252cfaf1ffef8694a3e8081b1b6b944f7
Signed-off-by: Shiyu Sun 
---
M Makefile
M flashrom.c
A lspcon_i2c_spi.c
M meson.build
M meson_options.txt
M programmer.h
6 files changed, 551 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/87/39687/8