staging: vt6656: added space after coma operator in funtion call

as per coding style a space is required after ',' operator
in function calls, hence added the missing space after ','
operator in a function call

Signed-off-by: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>