Merge "Check if live tile targetSet is null in launchSideTaskInLiveTileModeForRestartedApp" into sc-dev am: fa72529b05 am: 6ffacb09a9 am: 0d31266d00

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15184810

Change-Id: Ice16283b104bdf3c1c2e5899a16205f2013646fc