x86: fix build breakage when PCI is define and PARAVIRT is not

- Fix the the build breakage when PARAVIRT is defined
  but PCI is not
  This fixes problem reported at:
	http://marc.info/?l=linux-kernel&m=120525966600698&w=2
- Make is_vsmp_box() available even when PARAVIRT is not defined.
  This is needed to determine if tsc's are reliable as a time source
  even when PARAVIRT is not defined.
- split vsmp_init to use is_vsmp_box() and set_vsmp_pv_ops()
  set_vsmp_pv_ops will do nothing if PCI is not enabled in the config.

Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/include/asm-x86/apic.h b/include/asm-x86/apic.h
index b804238..b11d652 100644
--- a/include/asm-x86/apic.h
+++ b/include/asm-x86/apic.h
@@ -50,19 +50,16 @@
  */
 #ifdef CONFIG_PARAVIRT
 #include <asm/paravirt.h>
-extern int is_vsmp_box(void);
 #else
 #define apic_write native_apic_write
 #define apic_write_atomic native_apic_write_atomic
 #define apic_read native_apic_read
 #define setup_boot_clock setup_boot_APIC_clock
 #define setup_secondary_clock setup_secondary_APIC_clock
-static int inline is_vsmp_box(void)
-{
-	return 0;
-}
 #endif
 
+extern int is_vsmp_box(void);
+
 static inline void native_apic_write(unsigned long reg, u32 v)
 {
 	*((volatile u32 *)(APIC_BASE + reg)) = v;