au6601: change seg size and number of segments

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
au6601: move miter

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
au6601: initial work direct sg dma

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
au6601: sg dma work

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>