[MIPS] Deforest the function pointer jungle in the time code.

Hard to follow who is pointing what to where and why so it's simply getting
in the way of the time code renovation.

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

arch/mips/basler/excite/excite_setup.c

@@ -68,7 +68,7 @@ DEFINE_SPINLOCK(titan_lock);
 int titan_irqflags;
 
 
-static void excite_timer_init(void)
+void __init plat_time_init(void)
 {
 	const u32 modebit5 = ocd_readl(0x00e4);
 	unsigned int
@@ -261,9 +261,6 @@ void __init plat_mem_setup(void)
 	/* Announce RAM to system */
 	add_memory_region(0x00000000, memsize, BOOT_MEM_RAM);
 
-	/* Set up timer initialization hooks */
-	board_time_init = excite_timer_init;
-
 	/* Set up the peripheral address map */
 	*(boot_ocd_base + (LKB9 / sizeof (u32))) = 0;
 	*(boot_ocd_base + (LKB10 / sizeof (u32))) = 0;