sparc64: Fix instruction count in comment for __hypervisor_flush_tlb_pending.

Noticed by James Clarke.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

arch/sparc/mm/ultra.S

@@ -358,7 +358,7 @@ __hypervisor_flush_tlb_page: /* 22 insns */
 	nop
 	nop
 
-__hypervisor_flush_tlb_pending: /* 16 insns */
+__hypervisor_flush_tlb_pending: /* 27 insns */
 	/* %o0 = context, %o1 = nr, %o2 = vaddrs[] */
 	sllx		%o1, 3, %g1
 	mov		%o2, %g2