Utility class to bundle up priority, priority preference and device specific data Only intended to be used in conjunction with TBaSystemSoundInfo::iPriority

Layout of class is bits 31 -> 16: Device specific priority preference data bits 15 -> 8: Standard Epoc TMdaPriorityPreference setting bits 7 -> 0: Priority value stored as a TInt8. Maximum range possible is -256 -> +255 Note that MediaSvr currently defines a narrower range than this