Change in flashrom[master]: ichspi: Extract handling programmer param into a function

[Nico Huber (Code Review)]

Attention is currently required from:  Felix Singer, Edward O'Callaghan, Angel Pons, Anastasia Klimchuk, Nikolai Artemiev.
Nico Huber has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/58736 )

Change subject: ichspi: Extract handling programmer param into a function
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Patch Set 1:

(1 comment)

File ichspi.c:

https://review.coreboot.org/c/flashrom/+/58736/comment/6dfe6720_f0b830ab 
PS1, Line 1761: 	if (arg && !strcmp(arg, "hwseq")) {
> Just a thought: This would be more readable (and also look better) as a switch-case I think.

If you have any idea how to achieve that in C, please in a separate commit.