finally, I have found the solutions. I did it 2 years ago for imx7 board. I remember again.
do not need to modify the recipe.
the toolchain does not include the Crypto package
just manually copy Crypto to toolchain(I do not know how to modify somewhere in the compilation process to copy directly to make it, if someone knows how to do .please tell me ,thank you)
sudo cp -r /home/rnd2/work/maaxboard/zeus/imx-yocto-bsp/maaxboard/build/tmp/sysroots-components/x86_64/python3-pycrypto-native/usr/lib/python3.7/site-packages/Crypto /opt/fsl-imx-wayland-lite/5.4-zeus/sysroots/x86_64-pokysdk-linux/usr/lib/python3.7/site-packages/.