[automerger skipped] Merge "DO NOT MERGE: Add support for lane guidance transparency" into pi-car-dev am: 3fc5a1c339 -s ours am: e9e24f08b7 am: 3a3b825c60
am: 4d4f96d6a1

Change-Id: I7adea74c4b3e0af1ea1f6750a9358d55aa700f15