Add build files for timeout_decorator am: 12b00c2d63

Original change: https://android-review.googlesource.com/c/platform/external/python/timeout-decorator/+/2112185

Change-Id: I0dbfe80717582d05dcd079fdd46a9260a7b4bc88
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>