Replace calls to asprintf with SDL_asprintf

src/core/freebsd/SDL_evdev_kbd_freebsd.c

@@ -273,7 +273,7 @@ SDL_EVDEV_kbd_init(void)
              * Ensures that the keystrokes do not leak through to the console.
              */
             ioctl(kbd->console_fd, CONS_RELKBD, 1ul);
-            asprintf(&devicePath, "/dev/kbd%d", kbd->kbInfo->kb_index);         
+            SDL_asprintf(&devicePath, "/dev/kbd%d", kbd->kbInfo->kb_index);
             kbd->keyboard_fd = open(devicePath, O_WRONLY | O_CLOEXEC);
             if (kbd->keyboard_fd == -1)
             {
@@ -288,7 +288,7 @@ SDL_EVDEV_kbd_init(void)
             if (!SDL_GetHintBoolean(SDL_HINT_NO_SIGNAL_HANDLERS, SDL_FALSE)) {
                 kbd_register_emerg_cleanup(kbd);
             }
-            free(devicePath);
+            SDL_free(devicePath);
         }
         else kbd->keyboard_fd = kbd->console_fd;
     }