powercap / RAPL: Add support for Ivy Bridge server

It's confirmed that RAPL works as expected on Ivy Bridge servers.
Tested against processor: Intel(R) Xeon(R) CPU E5-2697 v2 @2.70GHz

Signed-off-by: Xiaolong Wang <xiaolong.wang@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
diff --git a/drivers/powercap/intel_rapl.c b/drivers/powercap/intel_rapl.c
index 06d21e6..fbab29d 100644
--- a/drivers/powercap/intel_rapl.c
+++ b/drivers/powercap/intel_rapl.c
@@ -1134,6 +1134,7 @@
 	RAPL_CPU(INTEL_FAM6_SANDYBRIDGE_X,	rapl_defaults_core),
 
 	RAPL_CPU(INTEL_FAM6_IVYBRIDGE,		rapl_defaults_core),
+	RAPL_CPU(INTEL_FAM6_IVYBRIDGE_X,	rapl_defaults_core),
 
 	RAPL_CPU(INTEL_FAM6_HASWELL_CORE,	rapl_defaults_core),
 	RAPL_CPU(INTEL_FAM6_HASWELL_ULT,	rapl_defaults_core),