codec2: switch HAL passing of C2FrameDate to clarified C2InfoBuffer

Update HAL scaffolding for clarified C2FrameData/C2InfoBuffer. HAL
does not actually pass C2InfoBuffer, but was accessing the individual
C2InfoBuffer objects that are now without shared_ptr.

Change-Id: I597f74050887a484cb2619224b50c0a784269cff