Add build files for pyserial am: 60af8d6614 am: bbb64237a7 am: 4f5f58f8d3 am: 2ff8f0ccc6 am: d86104c6af

Original change: https://android-review.googlesource.com/c/platform/external/python/pyserial/+/2112264

Change-Id: I81e92c758a7d0d7ebef8aaca4e40ec78eaa90ec9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>