x86: APIC: Make apic_verbosity unsigned

As a microoptimisation, make apic_verbosity unsigned.  This will make
apic_printk(APIC_QUIET, ...) expand into just printk(...) with the
surrounding condition and a reference to apic_verbosity removed.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/include/asm-x86/apic.h b/include/asm-x86/apic.h
index ea866ba..a3dd4c3 100644
--- a/include/asm-x86/apic.h
+++ b/include/asm-x86/apic.h
@@ -37,7 +37,7 @@
 
 #ifdef CONFIG_X86_LOCAL_APIC
 
-extern int apic_verbosity;
+extern unsigned int apic_verbosity;
 extern int local_apic_timer_c2_ok;
 
 extern int ioapic_force;