[CPUFREQ] Convert longhaul debug printk to use varargs.

From: Joe Perches.
Signed-off-by: Dave Jones <davej@redhat.com>

arch/i386/kernel/cpu/cpufreq/longhaul.c

@@ -43,10 +43,14 @@ static int vrmrev;
 static int dont_scale_voltage;
 static int debug;
 
-static void dprintk(const char *msg, ...)
+static void dprintk(const char *fmt, ...)
 {
-	if (debug == 1)
-		printk(msg);
+	va_list args;
+	if (debug == 0)
+		return;
+	va_start(args, fmt);
+	printk(fmt, args);
+	va_end(args);
 }