staging: vt6655: replace typedef struct tagSRTS_ab with struct vnt_rts_ab

Replacing members
ab, wDuration, wReserved and data

with

ab, duration, reserved and data

replacing unsigned short with u16 and __le16 where necessary.

pvRTS is void pointer.

Creating the new structure in rxtx.h

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