Add apex_defaults for consumerir HAL APEX

The IR HAL APEX can be defined by inheriting the default one. Note that
HAL in APEX can't load a legacy libhardware module from /vendor/lib/hw.
Instead, it tries to load the hardware module from the APEX. Hence, the
APEX inheriting this should embed it along with the HAL binary.

Bug: 300011390
Test: ConsumerIrTest VtsHalIrTargetTest hal_implementation_test
Change-Id: I14ab4a7e52195f630aa394f74a3f2852f6007ecc