lv_img_decoder_built_in_info() function
Get info about a built-in image
Arguments
decoder
the decoder where this function belongs
src
the image source: pointer to an `lv_img_dsc_t` variable, a file path or a symbol
store the image data here
Return value
LV_RES_OK: the info is successfully stored in `header`; LV_RES_INV: unknown format or other error.