Clarify which HAL (methods) apply to which devices am: bb819d396b am: f2b5038372

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2438094

Change-Id: I3ea70369c6e22cc3b43328854635f09fb8ed2f1b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>