Add build files for pyserial am: 4745695a5f am: b23ac7d8c0 am: f4e8677e7c

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/python/pyserial/+/18802649

Change-Id: I5fdd5eb7e564bd1033a69e541254301344b603b3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>