Merge changes from topics "remove-blueprint-main", "remove-some-minibp",...

Merge changes from topics "remove-blueprint-main", "remove-some-minibp", "remove-srcdir" am: 0dd067d3 am: 6eb2cd36

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/1796650

Change-Id: I88d3894075a5ad420a2ee1df05d5efcf5ce4db34