Change in coreboot[master]: {src}: Assign values before if statement

[Frans Hendriks (Code Review)]

Attention is currently required from: Julius Werner, Kyösti Mälkki, Alexander Couzens, Aaron Durbin, Patrick Rudolph.
Frans Hendriks has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/50040 )

Change subject: {src}: Assign values before if statement
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Patch Set 3:

(2 comments)

Patchset:

PS2:
> You most likely will be requested to split all that x86emu whitespace change to different commit.

During update something went wrong.
This patch should be placed on CB:50123

Patchset:

PS3:
> This isn't actually a requirement of our Coding Style, and I would vote against making it one. […]

I was not aware of history of checkpatch.

Goal is cleaning checkpatch output.
Disabling ASSIGN_IN_IF is a 'solution, but having a consistent code style is another way of solving this issue. 
The 'issue' occures in a few files only!