audio hal: Add 'interface' declarations for IDeviceFactory into .rc

Declaring the interfaces allows HIDL hwservicemanager to start
the HAL service in case it has crashed before audioserver
has called 'getService'.

Bug: 80227481
Test: use the repro case from the bug
Change-Id: Ibb46beb714b3985ab373d56d92da1105cfda28c6