NUSE: cleanup code

uncrustify, makeing checkpatch.pl happy

find ./arch/sim -name "*.[ch]" | xargs uncrustify -c linux.cfg.txt --replace
git commit --ammend
git diff 10770bc..HEAD  | scripts/checkpatch.pl -

checkpatch.pl ERRORs were fixed (except sign-off error)
WARNINGs are stil remained.