[Feature] Add milk-v duo bsp to ci-build

[BernardXiong]

Describe problem solved by the proposed feature

Some guys have mentioned that there may be some issues with milk-v duo bsp. After checking the ci, we found that milk-v duo bsp is not included in the ci-build. We can consider adding it to the ci-build to ensure that milk-v duo is initially free of issues.

Describe your preferred solution

Add milk-v duo bsp to ci-build.

Describe possible alternatives

No response