Change in flashrom[master]: dummyflasher.c: Extract params processing into a separate function

[Namyoon Woo (Code Review)]

Attention is currently required from: Nico Huber, Angel Pons, Anastasia Klimchuk.
Namyoon Woo has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/54748 )

Change subject: dummyflasher.c: Extract params processing into a separate function
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Patch Set 4:

(1 comment)

File dummyflasher.c:

https://review.coreboot.org/c/flashrom/+/54748/comment/0f1ceeb0_dc88e528 
PS4, Line 834: 		return 0;
nit: I understand that it will eventually go to dummy_init_out because data->emu_chip == EMULATE_NONE. But it is returning 0 implying 'ok' case.  TBH, it confuses me at the first look.
Can it handle as same as line 925~929 for consistency? (though it would change the original code flow.)