KVM: selftests: Use vm_create_without_vcpus() in psci_test

Use vm_create_without_vcpus() instead of open coding a rough equivalent
in psci_test.

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

tools/testing/selftests/kvm/aarch64/psci_test.c

@@ -78,8 +78,7 @@ static struct kvm_vm *setup_vm(void *guest_code)
 	struct kvm_vcpu_init init;
 	struct kvm_vm *vm;
 
-	vm = vm_create(DEFAULT_GUEST_PHY_PAGES);
-	kvm_vm_elf_load(vm, program_invocation_name);
+	vm = vm_create_without_vcpus(VM_MODE_DEFAULT, DEFAULT_GUEST_PHY_PAGES);
 	ucall_init(vm, NULL);
 
 	vm_ioctl(vm, KVM_ARM_PREFERRED_TARGET, &init);