Update src/lv_objx/lv_lmeter.c
Update src/lv_objx/lv_lmeter.c

Co-Authored-By: Gabor Kiss-Vamosi <c63b344ed077cb7efd9204892dd235a5f16a7819@gmail.com>
littlevgl/lvgl,littlevgl/lvgl,littlevgl/lvgl,littlevgl/lvgl