intel powerclamp: support Knights Landing

This patch enables intel_powerclamp driver to run on the
next-generation Intel(R) Xeon Phi Microarchitecture
code named "Knights Landing"

Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Acked-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>

drivers/thermal/intel_powerclamp.c

@@ -690,6 +690,7 @@ static const struct x86_cpu_id intel_powerclamp_ids[] = {
 	{ X86_VENDOR_INTEL, 6, 0x4c},
 	{ X86_VENDOR_INTEL, 6, 0x4d},
 	{ X86_VENDOR_INTEL, 6, 0x56},
+	{ X86_VENDOR_INTEL, 6, 0x57},
 	{}
 };
 MODULE_DEVICE_TABLE(x86cpu, intel_powerclamp_ids);