[LVGL] In the Imgbutton widget, use `lv_imagebutton_set_src` instead of `lv_imgbtn_set_src` in LVGL 9.x

[toko02]

1. Create LVLG 9.x imgbutton e.g. power_off
2. Assign image e.g. img_power_off to imgbutton
3. Generate code with build in EEZ Studio
4. Compiler error because of following line: lv_imgbtn_set_src(power_off, LV_IMAGEBUTTON_STATE_RELEASED, NULL, &img_power_off, NULL);

Fix rename above line with: lv_imagebutton_set_src(power_off, LV_IMAGEBUTTON_STATE_RELEASED, NULL, &img_power_off, NULL); Now with LVGL 9.2 compiles without error under Windows 11 with EEZ Studio 0.16.1

Please note with LVLG 8 lv_imgbtn_set_src is correct but it changed in LVGL 9 to lv_imagebutton_set_src

[mvladic]

Fixed.

Thanks!