你好，我想在Am5728上启动Android。我下载了processor-sdk-android-am57xx-evm-06.03.00.106，按照说明将img写入开发板，启动后有下面的错误
[ 10.806280] ueventd: firmware: could not find firmware for vpdma-1b8.bin
[ 11.100577] ueventd: firmware: could not find firmware for dra7-ipu1-fw.xem4
[ 11.108606] ueventd: firmware: could not find firmware for dra7-ipu2-fw.xem4
[ 11.117962] ueventd: firmware: could not find firmware for dra7-dsp1-fw.xe66
我在vendor.img中并没有找到这几个文件？请问这几个文件是必须的吗？
