staging: vt6656: merge PK_TYPE_11GB and PK_TYPE_11GA into vnt_rxtx_rts

add to vnt_rxtx_rts calls from s_vFillRTSHead.

add need_mic and union vnt_tx_data_head head positions from s_vGenerateTxParameter.

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