staging: vt6656: removed braces from single line if-statement

removed braces from if-control flow structs whenever it
contained only one statement to comply with the coding style

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