audio: Add Dolby subformat

Add Dolby subformats to support Dual-Mono content

Change-Id: Iff7d141f6689d5c378bee35c9e6627ce8af70cb6
(cherry picked from commit 2417c6e21770d83728fa8fed8856480aedf50d95)
system/audio: Add the the SPDIF device entry

Add the the SPDIF device entry

Change-Id: Ied13adebb4581c4f45ab9fde858c5417c4414d9a
(cherry picked from commit f159bde46fd23ccd56cc4eaf79734dc7393c755d)
audio: New audio formats for PCM Offload

- Add new formats 16/24 bit PCM offload formats

Change-Id: I68bccc2851e3820c7adb98af9e2e3818ea5bf01b
(cherry picked from commit 0aaee68668358506c2aba9685707703dd6faba26)
Underp an ifdef

Change-Id: If0e0f1fddcad3d7ec6987ecc5d4e6a40e605c39a
(cherry picked from commit ba81b72097cb78083fc51f6e7dbb5514731f972c)