fix sound settings

Change-Id: I955da6702159df0c78e8dcf8409b7fa1442ffb14
SoundSettings: Show DSPManager

credit to nebkat

Change-Id: I0e2f7c96778f731d57f59182cb30c85978c36b02

Conflicts:

	res/values/strings.xml
	res/xml/sound_settings.xml