Add some improvements to the existing RDT(Resource director technology) framework and fix some hotcpu RDT code. Sending them as a seperate series as per Thomas suggestion during the V1 of MBA review (Memory bandwidth allocation) - https://marc.info/?l=linux-kernel&m=148407699309286
Patches are based on 4.10-rc8 [PATCH 1/5] x86/intel_rdt: Update control registers only when user [PATCH 2/5] x86/intel_rdt: Improvements to parsing schemata [PATCH 3/5] x86/intel_rdt: Fail early on a resource with incorrect [PATCH 4/5] x86/intel_rdt: Reset the cbm MSR during rmdir [PATCH 5/5] x86/intel_rdt: hotcpu updates for RDT
