Disable software DRV (L1SS sleep) with PCIe instance
on sun platform as ADSP subsystem (software DRV component)
doesn't support this functionality.
Only CESTA based hardware DRV is supported.
Change-Id: I75368fab37e8bcaaa3c65320b6fdd37e023d3297
Signed-off-by: Prudhvi Yarlagadda <quic_pyarlaga@quicinc.com>