Merge "Rename SignalThresholdInfo.Builder#setThresholdUnlimited" am: 31083c40b9

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1566912

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I1a3ee8037a712e474a335b77fb5c8a3873fd599e