[M] Change in flashrom[master]: tree/: Replace NULL-case of programmer_delay() with internal_delay

[Anastasia Klimchuk (Code Review)]

Attention is currently required from: Felix Singer, Edward O'Callaghan, Angel Pons, Alexander Goncharov.

Anastasia Klimchuk has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/68434 )

Change subject: tree/: Replace NULL-case of programmer_delay() with internal_delay
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Patch Set 2: Code-Review+2

(1 comment)

File flashrom.c:

https://review.coreboot.org/c/flashrom/+/68434/comment/1e04dc4f_bcbb9e79 
PS1, Line 282: else
> ok but that is outside this diff.

Yes outside this diff... I think I got confused because the body of `programmer_delay` has been changed recently, and this comment should have been in some of the earlier patches.
Probably it's more accurate to say: it's outside of this one patch, but belongs to the ongoing effort to un-globalize programmer delay.
I am fine to have it in a separate patch.