TMdaAudioToneUtilityState in Multimedia MMF

TMdaAudioToneUtilityState

The state of the audio tone utility.

`EMdaAudioToneUtilityNotReady`	The audio tone utility has not been prepared to play a tone.
`EMdaAudioToneUtilityPrepared`	The audio tone utility has been prepared to play a tone and is ready.
`EMdaAudioToneUtilityPlaying`	The audio tone utility is currently playing a tone.

Enum TMdaAudioToneUtilityState