[M] Change in flashrom[master]: rayer_spi.c: Move param parse logic into own func

[Angel Pons (Code Review)]

Attention is currently required from: Felix Singer, Edward O'Callaghan.

Angel Pons has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/68230 )

Change subject: rayer_spi.c: Move param parse logic into own func
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Patch Set 1:

(1 comment)

File rayer_spi.c:

https://review.coreboot.org/c/flashrom/+/68230/comment/19009ea2_77c475f4 
PS1, Line 292: if (prog_type) {
             : 		for (; prog->type != NULL; prog++) {
             : 			if (strcasecmp(prog_type, prog->type) == 0) {
             : 				break;
             : 			}
             : 		}
             : 		free(prog_type);
             : 
             : 		if (prog->type == NULL) {
             : 			msg_perr("Error: Invalid device type specified.\n");
             : 			return 1;
             : 		}
             : 	}
> No, actually I didn't push CB:68238 before which made it unclear what I was thinking. […]

The idea is that the `prog_type` string isn't needed in the init code. So, instead of obtaining the `prog_type` string from `get_params()`, you could obtain `prog` directly.