Change in flashrom[master]: meson: add missing meson options from ebuild

[Richard Hughes (Code Review)]

Attention is currently required from: Richard Hughes, David Hendricks, Mario Limonciello, Edward O'Callaghan, Daniel Campello.
Richard Hughes has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/51552 )

Change subject: meson: add missing meson options from ebuild
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Patch Set 1:

(1 comment)

Patchset:

PS1: 
The wiki option is fine, but I don't think the static library option is correct. I think if you change the `shared_library()` to just `library()` then you can do `-Ddefault_library=static` and everything should magically work. I didn't know a static library was ever desired, so this is why I didn't use `library()` on initial submission. Apologies.