KVM: PPC: 44x: Initialize PVR

We need to make sure that vcpu->arch.pvr is initialized to a sane value,
so let's just take the host PVR.

Signed-off-by: Alexander Graf <[e-mail]>

arch/powerpc/kvm/44x.c

···
 		vcpu_44x->shadow_refs[i].gtlb_index = -1;
 
 	vcpu->arch.cpu_type = KVM_CPU_440;
+	vcpu->arch.pvr = mfspr(SPRN_PVR);
 
 	return 0;
 }