staging: vt6656: s_vGenerateTxParameter Parse out struct vnt_rrv_time_rts

Creat new function vnt_rxtx_rts that will eventually carry onward
functions.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>