Change in flashrom[master]: meson: add option to disable tests

[Thomas Heijligen (Code Review)]

Attention is currently required from: Felix Singer, Edward O'Callaghan, Anastasia Klimchuk.
Thomas Heijligen has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/63832 )

Change subject: meson: add option to disable tests
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Patch Set 6:

(3 comments)

Commit Message:

https://review.coreboot.org/c/flashrom/+/63832/comment/cd696fd1_38644a62 
PS4, Line 9: usefull
> useful

Done

https://review.coreboot.org/c/flashrom/+/63832/comment/01f53bd6_d5339830 
PS4, Line 10: build
> built

Done

File meson.build:

https://review.coreboot.org/c/flashrom/+/63832/comment/97c98fdd_9a57ec2a 
PS1, Line 522: if cmocka_dep.found()
> I found what I was remembering, this commit 16c62a791d0a311bb040812b03c33881ab641a8e […]

Now we have 3 options, `auto` - the old behavior, which is default, `enabled` - enforces tests and `disabled` - disable all tests.
Is this fine for you?