[MIPS] Replace board_timer_setup function pointer by plat_timer_setup.

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

---
diff --git a/arch/mips/ddb5xxx/ddb5477/setup.c b/arch/mips/ddb5xxx/ddb5477/setup.c
index 904c8f4..f0cc0e8 100644
--- a/arch/mips/ddb5xxx/ddb5477/setup.c
+++ b/arch/mips/ddb5xxx/ddb5477/setup.c
@@ -147,7 +147,7 @@
 	mips_hpt_frequency = bus_frequency*(i+4)/4;
 }
 
-static void __init ddb_timer_setup(struct irqaction *irq)
+void __init plat_timer_setup(struct irqaction *irq)
 {
 #if defined(USE_CPU_COUNTER_TIMER)
 
@@ -177,7 +177,6 @@
 	set_io_port_base(KSEG1ADDR(DDB_PCI_IO_BASE));
 
 	board_time_init = ddb_time_init;
-	board_timer_setup = ddb_timer_setup;
 
 	_machine_restart = ddb_machine_restart;
 	_machine_halt = ddb_machine_halt;