[M] Change in flashrom[main]: libflashrom: Update the API for Logger Callback

[Dmitry Zhadinets (Code Review)]

Attention is currently required from: Anastasia Klimchuk, Peter Marheine.

Dmitry Zhadinets has posted comments on this change by Dmitry Zhadinets. ( https://review.coreboot.org/c/flashrom/+/86875?usp=email )

Change subject: libflashrom: Update the API for Logger Callback
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Patch Set 7:

(1 comment)

File libflashrom.c:

https://review.coreboot.org/c/flashrom/+/86875/comment/e93faea2_acdf524f?usp... :
PS6, Line 84: 	if (!log_callback && global_log_callback == format_message_and_invoke_log_callback_v2)
            : 		global_log_callback = NULL;
> Great review helps finding bugs. This is the case. Thx […]

*The logic of this condition was to reset log callback v**1** only in the case if it was installed by set_v2 op