Prepare for Sensorservice HIDL being deprecated

Sensorservice HIDL interface will no longer be registered with
hwservicemanager, so don't crash system_server in that case.

Test: Boot Cuttlefish without sensorservice HIDL
Bug: 218588089
Change-Id: I2a242f37a1b025696dc5c1f1d275e1af50d84928