tools/power/x86: Add SOC slider and platform profile support

tools/power/x86: Add SOC slider and platform profile support

Add support for reading and writing SOC slider parameters and
platform profile via sysfs in x86_energy_perf_policy.

New command-line options:
  --soc-slider-balance <value>
  --soc-slider-offset <value>
  --platform-profile <name>

These options allow control of the processor thermal SOC
slider balance and offset through the
processor_thermal_soc_slider module, as well as the
platform profile class interface.

When no update flags are set, the tool now also prints
the current SOC slider and platform profile values
alongside existing MSR output.

Signed-off-by: Kaushlendra Kumar <kaushlendra.kumar@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>