Merge "Add type annotations to gdbclient.py" am: f118084dfa

Original change: https://android-review.googlesource.com/c/platform/development/+/2609050

Change-Id: I9bab6c7be9f096db3413d65a9a297bf03b17e1a9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>