[XS] Change in flashrom[main]: tests/selfcheck.c: Include the missing header lifecycle.h

[Hsuan-ting Chen (Code Review)]

Attention is currently required from: Anastasia Klimchuk, Hsuan Ting Chen.

Hsuan-ting Chen has posted comments on this change by Hsuan-ting Chen. ( https://review.coreboot.org/c/flashrom/+/83219?usp=email )

Change subject: tests/selfcheck.c: Include the missing header lifecycle.h
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Patch Set 1:

(1 comment)

Patchset:

PS1: 
I will get a build error in the CHROMIUM repository:

```
../tests/selfcheck.c:155:9: error: return type defaults to ‘int’ [-Werror=implicit-int]                   
 155 |     SKIP_TEST(selfcheck_board_matches_table)                                  
   |     ^~~~~~~~~                                                  
../tests/selfcheck.c:155:9: error: no previous prototype for ‘SKIP_TEST’ [-Werror=missing-prototypes]            
../tests/selfcheck.c: In function ‘SKIP_TEST’:                                       
../tests/selfcheck.c:155:9: error: type of ‘selfcheck_board_matches_table’ defaults to ‘int’ [-Werror=implicit-int]     
../tests/selfcheck.c:157: error: expected ‘{’ at end of input                                
../tests/selfcheck.c:157: error: control reaches end of non-void function [-Werror=return-type]               
cc1: all warnings being treated as errors                                          
[109/148] Generating doc/documentation with a custom command                                
ninja: build stopped: subcommand failed.      
```

However, I cannot reproduce this error in the UPSTREAM version.

Regardless, adding this change makes sense to me – as long as we need it, we should include it.