Update torch brightness max level description. am: 8dbfe053 am: b37730ba

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/19386357



Change-Id: I08368480a7a4f9b4c4c66a3d6d9cba4c27ee94b8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>