Merge "Wait in ReorderWidgets test for the workapce to load after changing it." into tm-qpr-dev am: 58502d0236

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/20305929

Change-Id: Iae0770df2ec2fba58cbe4b18d1038078e05c86c4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>