With ACE2/3 the HDA DMA includes registers to read the Linear Link
Position.
Previous platforms (CAVS, ACE1) was able to report the LLP for GPDMA. Since
ACE2 all links are handled with HD-DMA, hence the new register has been
added for the firmware to report the LLP to the host.
Set the total_copied to 0 for older ACE1/CAVS platforms and in case of
host DMA on ACE2/3 since the informatiojn is not available.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>