platform/x86: ISST: Support SST-PP revision 2

platform/x86: ISST: Support SST-PP revision 2

SST PP revision 2 added fabric 1 P0, P1 and Pm frequencies. Export them
by using a new IOCTL ISST_IF_GET_PERF_LEVEL_FABRIC_INFO. This IOCTL
requires platforms with SST PP revision 2 or higher.

To accommodate potential future increases in fabric count and avoid ABI
changes, support is extended for up to 8 fabrics.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://lore.kernel.org/r/20250506163531.1061185-3-srinivas.pandruvada@linux.intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>