Unable to load modules upon loading arm64 kernel build

Hi, I have built an arm64 kernel image as per the step provided at https://community.arm.com/dev-platforms/w/docs/265/boot-an-arm64-kernel-on-the-juno-r1-platform .

After copying the image to /SOFTWARE, I am able to boot into the image. However, upon booting, the modules are not displayed ( ~#lsmod). The screen shot is as bellow:

I have used 4.20 kernel for the build and 18.01-linaro u-boot package.

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