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

[Edward O'Callaghan (Code Review)]

Attention is currently required from: Sam McNally, Nico Huber, Angel Pons.
Edward O'Callaghan has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/62282 )

Change subject: ichspi: Add Jasper Lake support
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Patch Set 7:

(3 comments)

File chipset_enable.c:

https://review.coreboot.org/c/flashrom/+/62282/comment/ce1eecaf_89898e10 
PS6, Line 1013: jlk
> Jasper lake is usually abbreviated as JSL.
> Done

File ich_descriptors.c:

https://review.coreboot.org/c/flashrom/+/62282/comment/7638cd0c_2f1fea6d 
PS6, Line 313: 	case CHIPSET_JASPER_LAKE:
> From the SPI programming guide I've seen (v0.8), this should use freq_str[1].
> Ah your right, in rev 0.8 2020 I did see this in section 3.2. I think the version I looked at was earlier. Fixed then. Thanks for spotting this Sam!

File ichspi.c:

https://review.coreboot.org/c/flashrom/+/62282/comment/2189d7f8_3ba3fb9f 
PS6, Line 2063: 		msg_pdbg("Enabling hardware sequencing by default for Apollo/Gemini/Elkhart Lake.\n");
> Update the message to include Jasper Lake.
> Done