x86: fix ACPI compile for LOCAL_APIC=n

ACPI processor idle code references local_apic_timer_c2_ok, which
is not available when LOCAL_APIC is disabled.

Define local_apic_timer_c2_ok as a constant, when LOCAL_APIC=n

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/include/asm-x86/apic_32.h b/include/asm-x86/apic_32.h
index 4091b33..be158b2 100644
--- a/include/asm-x86/apic_32.h
+++ b/include/asm-x86/apic_32.h
@@ -120,6 +120,7 @@
 
 #else /* !CONFIG_X86_LOCAL_APIC */
 static inline void lapic_shutdown(void) { }
+#define local_apic_timer_c2_ok		1
 
 #endif /* !CONFIG_X86_LOCAL_APIC */