Merge "Bug fix for properly clearing the last open call pointer" into udc-qpr-dev am: 8433b36842 am: a534826630

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24816581

Change-Id: I7395ecc3dd3417735f9080b0e94a0983a2b49ddb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>