[MIPS] MIPSsim: Build fix, rename sim_timer_setup -> plat_timer_setup.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/mips-boards/sim/sim_time.c

@@ -183,7 +183,7 @@ static void mips_timer_dispatch (struct pt_regs *regs)
 }
 
 
-void __init sim_timer_setup(struct irqaction *irq)
+void __init plat_timer_setup(struct irqaction *irq)
 {
 	if (cpu_has_veic) {
 		set_vi_handler(MSC01E_INT_CPUCTR, mips_timer_dispatch);