Merge tag 'kvm-x86-apic-6.3' of https://github.com/kvm-x86/linux into HEAD

KVM x86 APIC changes for 6.3:

 - Remove a superfluous variables from apic_get_tmcct()

 - Fix various edge cases in x2APIC MSR emulation

 - Mark APIC timer as expired if its in one-shot mode and the count
   underflows while the vCPU task was being migrated

 - Reset xAPIC when userspace forces "impossible" x2APIC => xAPIC transition