s390/vdso: use union tod_clock

int __s390_vdso_getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *unused)

{

	__u16 todval[8];

	union tod_clock clk;

	/* CPU number is stored in the programmable field of the TOD clock */

	get_tod_clock_ext((char *)todval);

	store_tod_clock_ext(&clk);

	if (cpu)

		*cpu = todval[7];

		*cpu = clk.pf;

	/* NUMA node is always zero */

	if (node)

		*node = 0;