staging: Clean up whitespace warnings in staging/winbond

Reduced checkpatch.pl warnings from 46 to 17
Long strings on lines over 80 characters remain untouched

Signed-off-by: Eddie Kovsky <ewk@edkovsky.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>