UefiCpuPkg/FeaturesLib: don't init MCi_CTL/STATUS when MCA's disabled
Today's McaInitialize() doesn't check State value before initialize
MCi_CTL and MCi_STATUS.
The patch fixes this issue by only initializing the two kinds of
MSRs when State is enabled.
Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com> Reviewed-by: Eric Dong <eric.dong@intel.com>