Update javadoc for setLaunchDisplayId am: 334190f26e am: c37e102250 am: 2e33ba4687 am: 6a29fdbd56

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/12794770

Change-Id: Id9c50caaccf60c5c0ff2d72f2dd0757c318f76d2