Match latest variant spec; update hue rotation logic am: 49fa723e am: 0affedf8 am: 421ee5dc

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18581097



Change-Id: I218706a418306d8c8e5640d94e7310246a3628c9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>