Add Dolby Atmos support for Spatial Audio

[base08]

The current version of Spatial Audio support has multi channel support but not Dolby Atmos (compressed audio). This can be seen working on the latest versions of Infuse.

[kingslay]

Dolby Atmos 需要有Dolby授权才可以。目前只是把Dolby Atmos 转为多声道。