Merge "Add safe wrapper for RpcPreconnectedClient." am: 7e265dda44

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Virtualization/+/2172166

Change-Id: Ic36da7ae6aa4b53a2b9406b2f2112ecbcbdff0d7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>