AP_Math: fix for HAL_SITL rename

libraries/AP_Math/AP_Math.cpp

@@ -39,7 +39,7 @@ float fast_atan(float v)
     return (v*(1.6867629106f + v2*0.4378497304f)/(1.6867633134f + v2));
 }
 
-#if HAL_CPU_CLASS < HAL_CPU_CLASS_75 || CONFIG_HAL_BOARD == HAL_BOARD_AVR_SITL
+#if HAL_CPU_CLASS < HAL_CPU_CLASS_75 || CONFIG_HAL_BOARD == HAL_BOARD_SITL
     #define FAST_ATAN2_PIBY2_FLOAT  1.5707963f
     // fast_atan2 - faster version of atan2
     //      126 us on AVR cpu vs 199 for regular atan2

libraries/AP_Math/examples/eulers/eulers.pde

@@ -9,7 +9,7 @@
 #include <AP_Progmem.h>
 #include <AP_Param.h>
 #include <AP_HAL_AVR.h>
-#include <AP_HAL_AVR_SITL.h>
+#include <AP_HAL_SITL.h>
 #include <AP_HAL_Empty.h>
 #include <AP_HAL_PX4.h>
 #include <AP_HAL_Linux.h>

libraries/AP_Math/examples/location/location.pde

@@ -22,7 +22,7 @@
 #include <AP_Declination.h>
 
 #include <AP_HAL_AVR.h>
-#include <AP_HAL_AVR_SITL.h>
+#include <AP_HAL_SITL.h>
 #include <AP_HAL_Empty.h>
 #include <AP_HAL_Linux.h>
 #include <AP_AHRS.h>

libraries/AP_Math/examples/rotations/rotations.pde

@@ -8,7 +8,7 @@
 #include <AP_Progmem.h>
 #include <AP_Param.h>
 #include <AP_HAL_AVR.h>
-#include <AP_HAL_AVR_SITL.h>
+#include <AP_HAL_SITL.h>
 #include <AP_HAL_Empty.h>
 #include <AP_HAL_PX4.h>
 #include <AP_HAL_Linux.h>