staging: unisys: clean up bracing in vbuschannel_sanitize_buffer()

The bracing in vbuschannel_sanitize_buffer() in vbusdeviceinfo.h is
messy. Clean these up.

Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>