warning: fix arch x86 kernel io_apic c

fix warning:

  arch/x86/kernel/io_apic.c: In function ‘print_local_APIC’:
  arch/x86/kernel/io_apic.c:1786: warning: format ‘%08x’ expects type ‘unsigned int’, but argument 2 has type ‘u64’
  arch/x86/kernel/io_apic.c:1787: warning: format ‘%08x’ expects type ‘unsigned int’, but argument 2 has type ‘u64’

By creating uniform behavior on 32-bit and 64-bit and printing out the ICR
value in two 32-bit words.

Code has changed:

   text	   data	    bss	    dec	    hex	filename
  22901	  19650	  17040	  59591	   e8c7	io_apic.o.before
  22899	  19650	  17040	  59589	   e8c5	io_apic.o.after

Due to the 32-bit cast narrowing the printed out value on 64-bit.
Signed-off-by: Ingo Molnar <mingo@elte.hu>

arch/x86/kernel/io_apic.c

@@ -1774,8 +1774,8 @@ __apicdebuginit(void) print_local_APIC(void *dummy)
 	}
 
 	icr = apic_icr_read();
-	printk(KERN_DEBUG "... APIC ICR: %08x\n", icr);
-	printk(KERN_DEBUG "... APIC ICR2: %08x\n", icr >> 32);
+	printk(KERN_DEBUG "... APIC ICR: %08x\n", (u32)icr);
+	printk(KERN_DEBUG "... APIC ICR2: %08x\n", (u32)(icr >> 32));
 
 	v = apic_read(APIC_LVTT);
 	printk(KERN_DEBUG "... APIC LVTT: %08x\n", v);