KVM: SVM: Skip intercepted PAUSE instructions after emulation

Skip PAUSE after interception to avoid unnecessarily re-executing the
instruction in the guest, e.g. after regaining control post-yield.
This is a benign bug as KVM disables PAUSE interception if filtering is
off, including the case where pause_filter_count is set to zero.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210205005750.3841462-10-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>