Add public Codec2 HIDL interfaces

Test: make cts -j123 && cts-tradefed run cts-dev -m \
CtsMediaTestCases --compatibility:module-arg \
CtsMediaTestCases:include-annotation:\
android.platform.test.annotations.RequiresDevice

Bug: 112362730
Bug: 119853704

Change-Id: Ie84dab48c4f068eb1f6289b5c022525cd06ef7fc