[MIPS] SMP: Scatter __cpuinit over the code as needed.

MIPS doesn't do CPU hotplugging yet but since many of the functions don't
even have an __init let's fix this right.

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

arch/mips/pmc-sierra/yosemite/smp.c

@@ -77,7 +77,7 @@ void __init plat_prepare_cpus(unsigned int max_cpus)
  * stack so the first thing we do is throw away that stuff and load useful
  * values into the registers ...
  */
-void __init prom_boot_secondary(int cpu, struct task_struct *idle)
+void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle)
 {
 	unsigned long gp = (unsigned long) task_thread_info(idle);
 	unsigned long sp = __KSTK_TOS(idle);
@@ -97,12 +97,12 @@ void prom_cpus_done(void)
  *  After we've done initial boot, this function is called to allow the
  *  board code to clean up state, if needed
  */
-void prom_init_secondary(void)
+void __cpuinit prom_init_secondary(void)
 {
 	set_c0_status(ST0_CO | ST0_IE | ST0_IM);
 }
 
-void prom_smp_finish(void)
+void __cpuinit prom_smp_finish(void)
 {
 }