[PATCH] USB: rndis_host whitespace/comment updates

This adds a "avoid proprietary protocols" warnoff, identifying several
of the known deficiencies in Microsoft's excuse-for-specification, and
fixes some whitespace bugs.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>