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

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

Change-Id: I3e18045e4f32909d18150cb4aaa5b2b166e3302e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>