[PATCH] ARM: OMAP: pm.c : fix warning

Attached patch fixes following warning:
arch/arm/mach-omap1/pm.c: In function vbus_active'
Signed-off-by: Komal Shah <komal_shah802003@yahoo.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap1/pm.c

@@ -137,9 +137,9 @@ void omap_pm_idle(void)
 
 	do_sleep = 0;
 	while (enable_dyn_sleep) {
-		extern int vbus_active;
 
 #ifdef CONFIG_CBUS_TAHVO_USB
+		extern int vbus_active;
 		/* Clock requirements? */
 		if (vbus_active)
 			break;