AP_OSD: change AC_FENCE to AP_FENCE_ENABLED

libraries/AP_OSD/AP_OSD.h

@@ -276,7 +276,7 @@ private:
     void draw_current2(uint8_t x, uint8_t y);
     void draw_vtx_power(uint8_t x, uint8_t y);
     void draw_hgt_abvterr(uint8_t x, uint8_t y);
-#if AC_FENCE
+#if AP_FENCE_ENABLED
     void draw_fence(uint8_t x, uint8_t y);
 #endif
     void draw_rngf(uint8_t x, uint8_t y);

libraries/AP_OSD/AP_OSD_Screen.cpp

@@ -2124,7 +2124,7 @@ void AP_OSD_Screen::draw_hgt_abvterr(uint8_t x, uint8_t y)
 }
 #endif
 
-#if AC_FENCE
+#if AP_FENCE_ENABLED
 void AP_OSD_Screen::draw_fence(uint8_t x, uint8_t y)
 {
     AC_Fence *fenceptr = AP::fence();
@@ -2201,7 +2201,7 @@ void AP_OSD_Screen::draw(void)
     DRAW_SETTING(heading);
     DRAW_SETTING(wind);
     DRAW_SETTING(home);
-#if AC_FENCE
+#if AP_FENCE_ENABLED
     DRAW_SETTING(fence);
 #endif
     DRAW_SETTING(roll_angle);