powercap: RAPL: Add Power Limit4 support for Meteor Lake SoC

Add Meteor Lake SoC to the list of processor models for which
Power Limit4 is supported by the Intel RAPL driver.

Signed-off-by: Sumeet Pawnikar <sumeet.r.pawnikar@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>