[IA64] Fix some section mismatch errors

Section mismatch: reference to ...

 .init.text:prefill_possible_map from .text between 'setup_per_cpu_areas' and 'cpu_init'
 .init.text:iosapic_override_isa_irq from .text between 'iosapic_init' and 'iosapic_remove'
Signed-off-by: NTony Luck <tony.luck@intel.com>

arch/ia64/kernel/iosapic.c

@@ -1013,7 +1013,7 @@ iosapic_register_platform_intr (u32 int_type, unsigned int gsi,
 /*
  * ACPI calls this when it finds an entry for a legacy ISA IRQ override.
  */
-void __init
+void __devinit
 iosapic_override_isa_irq (unsigned int isa_irq, unsigned int gsi,
 			  unsigned long polarity,
 			  unsigned long trigger)

arch/ia64/kernel/setup.c

@@ -786,7 +786,7 @@ identify_cpu (struct cpuinfo_ia64 *c)
 	c->unimpl_pa_mask = ~((1L<<63) | ((1L << phys_addr_size) - 1));
 }
 
-void
+void __init
 setup_per_cpu_areas (void)
 {
 	/* start_kernel() requires this... */

include/asm-ia64/iosapic.h

@@ -83,7 +83,7 @@ extern int gsi_to_irq (unsigned int gsi);
 extern int iosapic_register_intr (unsigned int gsi, unsigned long polarity,
 				  unsigned long trigger);
 extern void iosapic_unregister_intr (unsigned int irq);
-extern void __init iosapic_override_isa_irq (unsigned int isa_irq, unsigned int gsi,
+extern void __devinit iosapic_override_isa_irq (unsigned int isa_irq, unsigned int gsi,
 				      unsigned long polarity,
 				      unsigned long trigger);
 extern int __init iosapic_register_platform_intr (u32 int_type,