Make hidl.manager optional in default device matrix am: 32121aecfd am: 360773b366 am: eb8aa6de26

Original change: https://android-review.googlesource.com/c/platform/system/libhidl/+/2243537

Change-Id: I90ad1022c474f75305d2ccbf42c552a8953bf432
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>