AP_HAL: move BUZZER_PIN into AP_HAL

libraries/AP_HAL/board/f4light.h

@@ -37,7 +37,7 @@
 
 
 #ifdef BOARD_BUZZER_PIN
-#define BUZZER_PIN                      BOARD_BUZZER_PIN
+#define HAL_BUZZER_PIN                  BOARD_BUZZER_PIN
 #endif
 
 # define PUSHBUTTON_PIN                 BOARD_PUSHBUTTON_PIN

libraries/AP_HAL/board/linux.h

@@ -232,6 +232,7 @@
 #define HAL_GPIO_C_LED_PIN 45
 #define HAL_GPIO_LED_ON LOW
 #define HAL_GPIO_LED_OFF HIGH
+#define HAL_BUZZER_PIN 11
 #define HAL_INS_DEFAULT HAL_INS_BBBMINI
 #define HAL_INS_DEFAULT_ROTATION ROTATION_NONE
 #define HAL_INS_MPU9250_NAME "mpu9250"
@@ -274,6 +275,7 @@
 #define HAL_GPIO_C_LED_PIN 57
 #define HAL_GPIO_LED_ON    HIGH
 #define HAL_GPIO_LED_OFF   LOW
+#define HAL_BUZZER_PIN 28
 #define HAL_INS_DEFAULT HAL_INS_MPU9250_SPI
 #define HAL_INS_MPU9250_NAME "mpu9250"
 #define HAL_INS_DEFAULT_ROTATION ROTATION_NONE

libraries/AP_HAL/board/vrbrain.h

@@ -47,6 +47,7 @@
 #define EXTERNAL_LED_ARMED        29    // Armed LED - AN11
 #define EXTERNAL_LED_MOTOR1       30    // Motor1 LED - AN8
 #define EXTERNAL_LED_MOTOR2       31    // Motor2 LED - AN12
+#define HAL_BUZZER_PIN            32
 
 #define HAL_BARO_MS5611_NAME "ms5611"
 #define HAL_BARO_MS5611_SPI_INT_NAME "ms5611_int"