[S] Change in coreboot[master]: soc/intel/meteorlake: Check MANUF_LOCK when logging manufacturing mode

[Sridhar Siricilla (Code Review)]

Attention is currently required from: Tarun Tuli, Jamie Ryu, Subrata Banik, Ravishankar Sarawadi, Sridhar Siricilla.

Hello Tarun Tuli, Jamie Ryu, Subrata Banik, Ravishankar Sarawadi, Kapil Porwal,

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

https://review.coreboot.org/c/coreboot/+/69578

to look at the new patch set (#2).

Change subject: soc/intel/meteorlake: Check MANUF_LOCK when logging manufacturing mode
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soc/intel/meteorlake: Check MANUF_LOCK when logging manufacturing mode

As per Intel doc #729124 Section 3.6.1 "Intel CSME Production Machine
Determination", from ADL onwards there are three criteria which
determine whether a device is in production mode:
1. Fuses are programmed
2. SPI descriptor is locked
3. Manufacturing variables are locked

When logging whether the device is in manufacturing mode, 1 and 2 are
already checked. Add a check for 3 as well.

Also add logs for each individual criteria so it's easy to tell why the
overall Manufacturing Mode is set or not.

TEST=Build and boot MTL RVP

Snippet from coreboot log:
[DEBUG]  ME: Manufacturing Mode          : YES

Signed-off-by: Sridhar Siricilla 
Change-Id: I495a7d8730716fc92e8c57b2caef73e8bb44d30b
---
M src/soc/intel/meteorlake/me.c
1 file changed, 42 insertions(+), 6 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/78/69578/2