Merge "lights: Re-write example service in Rust" am: c5521aef12

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2628631

Change-Id: I2e2efae36e4cbce02ff456be3696f30f415b6e89
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>