Merge "Modify dimming threshold from 0.2 to 0.9." into main am: a1283449

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2921266



Change-Id: Ie372e4b453eaff34386f19be6e7849dac77773e9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>