platform/x86: ISST: Restore SST-PP control to all domains

platform/x86: ISST: Restore SST-PP control to all domains

The SST-PP control offset is only restored to power domain 0 after
resume. During suspend, control values are read and stored for all
power domains.

Use pd_info->sst_base instead of power_domain_info->sst_base, which
only points to power domain 0 base address.

Fixes: dc7901b5a156 ("platform/x86: ISST: Store and restore all domains data")
Reported-by: Yi Lai <yi1.lai@intel.com>
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@intel.com>
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20260528204521.3531456-1-srinivas.pandruvada@linux.intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>