Merge "gdbrunner: Make sure remote lldb-server has +x" am: d9150d3841

Original change: https://android-review.googlesource.com/c/platform/development/+/2248094

Change-Id: Iffe7ab6637ab4419528fbe33fbc657f8b7c9c12d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>