hal: Tell Huawei acdb loader which files to load

Huaweis's audio.primary.msm8916 HAL constructs this path from
/sys/bus/platform/drivers/hw_audio_info/hw_audio_info/product_identifier.

Change-Id: I34034d1c7365ebf704be033293821377fb5ce615
(cherry picked from commit 4ec87c17e0ac9f3da38f30e8c2fc2d9b8d64e1e6)