HAL: fix example sketch

libraries/AP_HAL/examples/AnalogIn/AnalogIn.pde

@@ -9,6 +9,7 @@
 #include <AP_HAL_AVR_SITL.h>
 #include <AP_HAL_PX4.h>
 #include <AP_HAL_Empty.h>
+#include <StorageManager.h>
 
 const AP_HAL::HAL& hal = AP_HAL_BOARD_DRIVER;
 

libraries/AP_HAL/examples/Printf/Printf.pde

@@ -28,6 +28,7 @@
 #include <AP_ADC_AnalogSource.h>
 #include <AP_NavEKF.h>
 #include <AP_Rally.h>
+#include <AP_BattMonitor.h>
 
 const AP_HAL::HAL& hal = AP_HAL_BOARD_DRIVER;
 

libraries/AP_HAL/examples/RCInput/RCInput.pde

@@ -33,6 +33,7 @@
 #include <AP_Rally.h>
 #include <AP_Scheduler.h>
 #include <UARTDriver.h>
+#include <AP_BattMonitor.h>
 
 const AP_HAL::HAL& hal = AP_HAL_BOARD_DRIVER;
 

libraries/AP_HAL/examples/RCOutput/RCOutput.pde

@@ -33,6 +33,7 @@
 #include <AP_Rally.h>
 #include <AP_Scheduler.h>
 #include <UARTDriver.h>
+#include <AP_BattMonitor.h>
 
 const AP_HAL::HAL& hal = AP_HAL_BOARD_DRIVER;
 

libraries/AP_HAL/examples/UART_test/UART_test.pde

@@ -33,6 +33,7 @@
 #include <AP_Rally.h>
 #include <AP_Scheduler.h>
 #include <UARTDriver.h>
+#include <AP_BattMonitor.h>
 
 #if HAL_OS_POSIX_IO
 #include <stdio.h>