kunit: Match parenthesis alignment to improve code readability

Tidy up code by fixing the following checkpatch warnings:
CHECK: Alignment should match open parenthesis
CHECK: Lines should not end with a '('

Signed-off-by: Lucas Stankus <lucas.p.stankus@gmail.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>