Prepare for android.hidl.allocator deprecation am: 4ed17b5f7c am: fe4d3522c6

Original change: https://android-review.googlesource.com/c/platform/system/libhidl/+/2853457

Change-Id: I04738b4dd79cdf437037a57738a3af4e23478650
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>