qemu: fix build when !HAVE_NUMACTL

Commit 97010eb1 forgot to change the other side of an #ifdef.

* src/qemu/qemu_process.c (qemuProcessInitNumaMemoryPolicy): Add
argument.
(cherry picked from commit 5c650b98)

src/qemu/qemu_process.c

@@ -1740,7 +1740,8 @@ cleanup:
 }
 #else
 static int
-qemuProcessInitNumaMemoryPolicy(virDomainObjPtr vm)
+qemuProcessInitNumaMemoryPolicy(virDomainObjPtr vm,
+                                const char *nodemask ATTRIBUTE_UNUSED)
 {
     if (vm->def->numatune.memory.nodemask) {
         qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",