fix(monkey): add missing include (#5903)

src/others/monkey/lv_monkey.c

@@ -10,6 +10,11 @@
 
 #if LV_USE_MONKEY != 0
 
+#include "../../misc/lv_math.h"
+#include "../../misc/lv_assert.h"
+#include "../../stdlib/lv_mem.h"
+#include "../../display/lv_display.h"
+
 /*********************
  *      DEFINES
  *********************/

src/others/monkey/lv_monkey.h

@@ -13,6 +13,7 @@ extern "C" {
  *      INCLUDES
  *********************/
 #include "../../lv_conf_internal.h"
+#include "../../indev/lv_indev.h"
 
 #if LV_USE_MONKEY != 0
 

tests/src/lv_test_conf_full.h

@@ -56,6 +56,7 @@
 #define LV_USE_FS_MEMFS     1
 #define LV_FS_MEMFS_LETTER  'M'
 
+#define LV_USE_MONKEY       1
 #define LV_USE_RLE          1
 #define LV_USE_LODEPNG      1
 #define LV_USE_LIBPNG       1