HAL_AVR: corrected includes to replace #include "$HEADER" with #inlcude "utility/$HEADER"

adding -I for EVERY DIRECTORY isn't desirable

http://gcc.gnu.org/onlinedocs/cpp/Search-Path.html

libraries/AP_HAL_AVR/Console.cpp

@@ -5,7 +5,7 @@
 
 #include <limits.h>
 
-#include "print_vprintf.h"
+#include "utility/print_vprintf.h"
 
 #include "Console.h"
 using namespace AP_HAL_AVR;

libraries/AP_HAL_AVR/GPIO.cpp

@@ -4,7 +4,7 @@
 #include <avr/interrupt.h>
 #include <avr/io.h>
 
-#include "pins_arduino_mega.h"
+#include "utility/pins_arduino_mega.h"
 
 #include "GPIO.h"
 using namespace AP_HAL_AVR;

libraries/AP_HAL_AVR/SPIDeviceManager_APM1.cpp

@@ -6,7 +6,7 @@
 #include "SPIDriver.h"
 #include "SPIDevices.h"
 #include "GPIO.h"
-#include "pins_arduino_mega.h"
+#include "utility/pins_arduino_mega.h"
 using namespace AP_HAL_AVR;
 
 extern const AP_HAL::HAL& hal;

libraries/AP_HAL_AVR/SPIDeviceManager_APM2.cpp

@@ -5,7 +5,7 @@
 #include <AP_HAL.h>
 #include "SPIDriver.h"
 #include "SPIDevices.h"
-#include "pins_arduino_mega.h"
+#include "utility/pins_arduino_mega.h"
 using namespace AP_HAL_AVR;
 
 extern const AP_HAL::HAL& hal;

libraries/AP_HAL_AVR/SPIDevice_SPI0.cpp

@@ -7,7 +7,7 @@
 #include "SPIDevices.h"
 #include "GPIO.h"
 #include "Semaphores.h"
-#include "pins_arduino_mega.h"
+#include "utility/pins_arduino_mega.h"
 using namespace AP_HAL_AVR;
 
 extern const AP_HAL::HAL& hal;

libraries/AP_HAL_AVR/SPIDevice_SPI2.cpp

@@ -8,7 +8,7 @@
 #include "SPIDevices.h"
 #include "GPIO.h"
 #include "Semaphores.h"
-#include "pins_arduino_mega.h"
+#include "utility/pins_arduino_mega.h"
 using namespace AP_HAL_AVR;
 
 extern const AP_HAL::HAL& hal;

libraries/AP_HAL_AVR/SPIDevice_SPI3.cpp

@@ -10,7 +10,7 @@
 #include "GPIO.h"
 #include "Semaphores.h"
 
-#include "pins_arduino_mega.h"
+#include "utility/pins_arduino_mega.h"
 
 using namespace AP_HAL_AVR;
 

libraries/AP_HAL_AVR/Scheduler.cpp

@@ -8,7 +8,7 @@
 #include <avr/interrupt.h>
 
 #include "Scheduler.h"
-#include "ISRRegistry.h"
+#include "utility/ISRRegistry.h"
 using namespace AP_HAL_AVR;
 
 extern const AP_HAL::HAL& hal;

libraries/AP_HAL_AVR/UARTDriver.cpp

@@ -19,7 +19,7 @@
 #include <AP_HAL.h>
 #include <AP_Math.h>
 
-#include "print_vprintf.h"
+#include "utility/print_vprintf.h"
 #include "UARTDriver.h"
 using namespace AP_HAL_AVR;
 

libraries/AP_HAL_AVR/Util.cpp

@@ -2,7 +2,7 @@
 #if CONFIG_HAL_BOARD == HAL_BOARD_APM1 || CONFIG_HAL_BOARD == HAL_BOARD_APM2
 
 #include "Util.h"
-#include "print_vprintf.h"
+#include "utility/print_vprintf.h"
 using namespace AP_HAL_AVR;
 
 /* Helper class implements AP_HAL::Print so we can use utility/vprintf */