KVM: selftests: fix hyperv_clock test

The test was mistakenly using addr_gpa2hva on a gva and that happened
to work accidentally.  Commit 106a2e76 ("KVM: selftests: Lower the
min virtual address for misc page allocations") revealed this bug.

Fixes: 2c7f76b4 ("selftests: kvm: Add basic Hyper-V clocksources tests", 2021-03-18)
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20210804112057.409498-1-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

tools/testing/selftests/kvm/x86_64/hyperv_clock.c

@@ -215,7 +215,7 @@ int main(void)
 	vcpu_set_hv_cpuid(vm, VCPU_ID);
 
 	tsc_page_gva = vm_vaddr_alloc_page(vm);
-	memset(addr_gpa2hva(vm, tsc_page_gva), 0x0, getpagesize());
+	memset(addr_gva2hva(vm, tsc_page_gva), 0x0, getpagesize());
 	TEST_ASSERT((addr_gva2gpa(vm, tsc_page_gva) & (getpagesize() - 1)) == 0,
 		"TSC page has to be page aligned\n");
 	vcpu_args_set(vm, VCPU_ID, 2, tsc_page_gva, addr_gva2gpa(vm, tsc_page_gva));