Change in coreboot[master]: tests: Add lib/coreboot_table-test test case

[Paul Fagerburg (Code Review)]

Attention is currently required from: Martin Roth, Jakub Czapiga, Julius Werner, Jan Dabros.
Paul Fagerburg has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/52159 )

Change subject: tests: Add lib/coreboot_table-test test case
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Patch Set 2:

(1 comment)

File tests/lib/coreboot_table-test.c:

https://review.coreboot.org/c/coreboot/+/52159/comment/d85741f6_5e95e606 
PS2, Line 329: test_write_tables
This seems like a very large test. What are you testing here, that each LB_TAG type is written correctly? If so, it seems like it should be multiple smaller tests.
Or if you're testing that write_tables works correctly, should the test be so flexible as to allow the records in any order, or should it check that write_table put the records in the same order that was specified?