KVM: PPC: Book3S PR: Enable HTM for PR KVM for KVM_CHECK_EXTENSION ioctl

With current patch set, PR KVM now supports HTM. So this patch turns it
on for PR KVM.

Tested with:
https://github.com/justdoitqd/publicFiles/blob/master/test_kvm_htm_cap.cSigned-off-by: Simon Guo <wei.guo.simon@gmail.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>

arch/powerpc/kvm/powerpc.c

@@ -648,9 +648,8 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
 #endif
 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 	case KVM_CAP_PPC_HTM:
-		r = hv_enabled &&
-		    (!!(cur_cpu_spec->cpu_user_features2 & PPC_FEATURE2_HTM) ||
-		     cpu_has_feature(CPU_FTR_P9_TM_HV_ASSIST));
+		r = !!(cur_cpu_spec->cpu_user_features2 & PPC_FEATURE2_HTM) ||
+		     (hv_enabled && cpu_has_feature(CPU_FTR_P9_TM_HV_ASSIST));
 		break;
 #endif
 	default: