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/arm/pxa2xx-ac97-lib.c

@@ -16,6 +16,7 @@
 #include <linux/interrupt.h>
 #include <linux/clk.h>
 #include <linux/delay.h>
+#include <linux/module.h>
 
 #include <sound/ac97_codec.h>
 #include <sound/pxa2xx-lib.h>

sound/arm/pxa2xx-pcm.c

@@ -10,6 +10,7 @@
  * published by the Free Software Foundation.
  */
 
+#include <linux/module.h>
 #include <sound/core.h>
 #include <sound/pxa2xx-lib.h>