azalia: Move shared variable to separate file

Change-Id: Icf46ad1397c67478887c80a627b8f4eb0a67e542
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/6695
Tested-by: build bot (Jenkins)
Reviewed-by: Idwer Vollering <vidwer@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>

src/mainboard/google/link/mainboard.c

@@ -40,6 +40,7 @@
 #include <smbios.h>
 #include <device/pci.h>
 #include <ec/google/chromeec/ec.h>
+#include <device/azalia_device.h>
 
 /* placeholder for evenual link post. Not sure what we'll
  * do but it will look nice
@@ -150,11 +151,6 @@ static int int15_handler(void)
 
 /* Audio Setup */
 
-extern const u32 * cim_verb_data;
-extern u32 cim_verb_data_size;
-extern const u32 * pc_beep_verbs;
-extern u32 pc_beep_verbs_size;
-
 static void verb_setup(void)
 {
 	cim_verb_data = mainboard_cim_verb_data;