iwlegacy: indentions and whitespaces

Process iwlegacy source files using:

indent -npro -l500 -nhnl
indent -npro -kr -i8 -ts8 -sob -l80 -nbbo -ss -ncs -cp1 -il0 -psl

Plus manual compilation fixes.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>