Merge "Brightness key control: apply linear increment instead of gamma" into...

Merge "Brightness key control: apply linear increment instead of gamma" into udc-dev am: 7429467d am: b917d4fb

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21480128



Change-Id: I18c045f9a9bcc24bdecd5d34accad2b919d87bc2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>