Revert "lint/clang-format: set to 96 chars per line"

This reverts commit 626ba097a2.

This change was submitted under the incorrect assumption that there was
agreement on a coding style change. There wasn't, so while the issue is
under discussion we should revert to the previous status quo.

Making clang-format honor the line length is a separate issue from
changing the line length, and can be reuploaded as a separate CL.

Change-Id: I433c82c95a897b3113cace3668cc8ce0f1ab75bf
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31916
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

.clang-format

@@ -7,7 +7,7 @@ AllowShortIfStatementsOnASingleLine:		false
 IndentCaseLabels:				false
 SortIncludes:					false
 ContinuationIndentWidth:			8
-ColumnLimit:					96
+ColumnLimit:					0
 AlwaysBreakBeforeMultilineStrings:		true
 AllowShortLoopsOnASingleLine:			false
 AllowShortFunctionsOnASingleLine:		false