Revert "[aml] fixed, force system volume to max so passthrough works"

This reverts commit e509e31fd3ddb43487bd5624eeb3b6992c809222.
[aml] fix audio issues with SoftAE, temp until Frodo 12.1 comes in
[aml] fix seeded guisettings with new profiles
[aml] silence debug log spew
[aml] remove obsolete code
[aml] fixed, seeking would break a/v sync
[aml] fixed FrameRateTracking code, still unused at the moment
[aml] refactor Libamplayer related code
[aml] refactor a/v sync to be less intrusive
[aml] fixed lingering stuck in pause (amcodec bug)
[aml] add mx detect
[aml] fixed, network might not be up when we are launched, so keep trying
[aml] fixed, restrict network retry to android
Merge remote-tracking branch 'aml_upstream/master' into AML2

Conflicts:
	xbmc/cores/AudioEngine/Sinks/AESinkAUDIOTRACK.cpp
	xbmc/cores/AudioEngine/Sinks/AESinkAUDIOTRACK.h