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

[Julius Werner (Code Review)]

Attention is currently required from: Jakub Czapiga, Paul Fagerburg, Jan Dabros.
Julius Werner has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/56305 )

Change subject: tests: Add lib/lzmadecode-test test case
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Patch Set 1:

(1 comment)

File tests/lib/lzmadecode-test.c:

https://review.coreboot.org/c/coreboot/+/56305/comment/5c1928f2_87de23b5 
PS1, Line 97: 			LzmaDecode(&dstate, test_state->encoded_data_ptr + data_offset,
> I assumed that ulzman() function is just a wrapper, but if it is the only way the coreboot uses the  […]

Everything in lzmadecode.c is the third-party code directly copied into the coreboot repo. I don't think it needs to be tested individually. lzma.c is the coreboot wrapper that everything else in coreboot uses and that's the (only) entry point into that functionality we care about.