tools/power turbostat: Add initial support for ClearwaterForest

Add initial support for ClearwaterForest.
It shares the same features with SierraForest.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

Author: zhang-rui

tools/power/x86/turbostat/turbostat.c

@@ -1037,6 +1037,7 @@ static const struct platform_data turbostat_pdata[] = {
 	{ INTEL_ATOM_GRACEMONT, &adl_features },
 	{ INTEL_ATOM_CRESTMONT_X, &srf_features },
 	{ INTEL_ATOM_CRESTMONT, &grr_features },
+	{ INTEL_ATOM_DARKMONT_X, &srf_features },
 	{ INTEL_XEON_PHI_KNL, &knl_features },
 	{ INTEL_XEON_PHI_KNM, &knl_features },
 	/*