CAS: Disable Descrambler API for AIDL am: 248dd8cce8

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2418319

Change-Id: I6e36999df2addcb1966fe61f12e5226b404fe6e2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>