Merge "Force HALs to explicitly enable legacy method for clearing buffer...

Merge "Force HALs to explicitly enable legacy method for clearing buffer caches" into udc-dev am: def2c211 am: 900a24cb am: 620afb80

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/23715006



Change-Id: Ie472ed52e354fea95f504e5be7aa28f749d8f52b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>