x86_64: Fix modular pc speaker

It turned out that the following change is needed when the speaker is
compiled as a module.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

arch/x86_64/kernel/setup.c

@@ -1440,7 +1440,7 @@ struct seq_operations cpuinfo_op = {
 	.show =	show_cpuinfo,
 };
 
-#ifdef CONFIG_INPUT_PCSPKR
+#if defined(CONFIG_INPUT_PCSPKR) || defined(CONFIG_INPUT_PCSPKR_MODULE)
 #include <linux/platform_device.h>
 static __init int add_pcspkr(void)
 {