sound: Add module.h to the previously silent sound users

Lots of sound drivers were getting module.h via the implicit presence
of it in <linux/device.h> but we are going to clean that up.  So
fix up those users now.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

sound/pci/ctxfi/xfi.c

@@ -12,6 +12,7 @@
 #include <linux/pci.h>
 #include <linux/moduleparam.h>
 #include <linux/pci_ids.h>
+#include <linux/module.h>
 #include <sound/core.h>
 #include <sound/initval.h>
 #include "ctatc.h"