Change in coreboot[master]: amdfwtool: Clear struct match before regular expression matching

[Felix Held (Code Review)]

Attention is currently required from: Bao Zheng, Jason Glenesk, Raul Rangel, Marshall Dawson, Zheng Bao, Nikolai Vyssotski, Rob Barnes, Karthik Ramasubramanian, Karthikeyan Ramasubramanian.
Felix Held has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/62482 )

Change subject: amdfwtool: Clear struct match before regular expression matching
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Patch Set 7:

(1 comment)

File util/amdfwtool/data_parse.c:

https://review.coreboot.org/c/coreboot/+/62482/comment/144fdd4a_3038571c 
PS7, Line 483: 	regmatch_t match[N_MATCHES] = {0};
should all elements be initialized to -1 here too? is_valid_entry will overwrite all before those get read, but that would be more consistent