Fix missing #includes and make local functions static for gigabeat

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18091 a1c6a512-1295-4272-9138-f99709370657

firmware/target/arm/imx31/gigabeat-s/adc-imx31.c

@@ -21,6 +21,7 @@
 #include "config.h"
 #include "system.h"
 #include "mc13783.h"
+#include "adc.h"
 #include "adc-target.h"
 #include "kernel.h"
 

firmware/target/arm/imx31/gigabeat-s/i2s-imx31.c

@@ -19,6 +19,8 @@
  *
  ****************************************************************************/
 
+#include "i2s.h"
+
 void i2s_reset(void)
 {
 }

firmware/target/arm/imx31/gigabeat-s/power-imx31.c

@@ -21,6 +21,7 @@
 #include "config.h"
 #include "system.h"
 #include "power.h"
+#include "power-imx31.h"
 #include "backlight.h"
 #include "backlight-target.h"
 #include "avic-imx31.h"

firmware/target/arm/imx31/gigabeat-s/serial-imx31.h

@@ -25,6 +25,7 @@
 #include <stdio.h>
 
 int tx_rdy(void);
+int rx_rdy(void);
 void tx_writec(const char c);
 void dprintf(const char * str, ... );
 

firmware/target/arm/imx31/gigabeat-s/usb-imx31.c

@@ -26,6 +26,7 @@
 #include "usb.h"
 #include "usb_core.h"
 #include "usb_drv.h"
+#include "usb-target.h"
 #include "clkctl-imx31.h"
 #include "mc13783.h"
 

firmware/target/arm/imx31/gigabeat-s/usb-target.h

@@ -26,7 +26,7 @@
 #endif
 
 void usb_connect_event(void);
-bool usb_init_device(void);
+void usb_init_device(void);
 int usb_detect(void);
 /* Read the immediate state of the cable from the PMIC */
 bool usb_plugged(void);

firmware/target/arm/imx31/gigabeat-s/wmcodec-imx31.c

@@ -24,6 +24,7 @@
 #include "system.h"
 #include "kernel.h"
 #include "sound.h"
+#include "wmcodec.h"
 #include "i2c-imx31.h"
 
 /* NOTE: Some port-specific bits will have to be moved away (node and GPIO