Change in flashrom[master]: ichspi: Add Alder Lake support

[Edward O'Callaghan (Code Review)]

Attention is currently required from: Sam McNally, Nico Huber, Rizwan Qureshi, Edward O'Callaghan, Angel Pons.
Hello Sam McNally, build bot (Jenkins), Subrata Banik, Rizwan Qureshi,

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

https://review.coreboot.org/c/flashrom/+/62251

to look at the new patch set (#12).

Change subject: ichspi: Add Alder Lake support
......................................................................

ichspi: Add Alder Lake support

Does exactly what it says on the tin.

BUG=b:220799648
TEST=```localhost ~ # flashrom --flash-name
<snip>
Found Programmer flash chip "Opaque flash chip" (32768 kB, Programmer-specific) mapped at physical address 0x0000000000000000.
vendor="Programmer" name="Opaque flash chip"
```
Tested on Brya.

Change-Id: Ie66cf519df13f3391c41f5016b16a81ef3dfd4bf
Signed-off-by: Edward O'Callaghan 
---
M chipset_enable.c
M ich_descriptors.c
M ichspi.c
M programmer.h
M util/ich_descriptors_tool/ich_descriptors_tool.c
5 files changed, 34 insertions(+), 3 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/51/62251/12