linux-phytec-ti

KVM: x86: rename argument to kvm_set_tsc_khz

This refers to the desired (scaled) frequency, which is called
user_tsc_khz in the rest of the file.

Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>