Fix oversight in the constification patch leading to assertion failures on sound playback
Fix oversight in the constification patch leading to assertion failures on
sound playback

crystalline/openc2e,crystalline/openc2e,ccdevnet/openc2e,bdonlan/openc2e,crystalline/openc2e,bdonlan/openc2e,crystalline/openc2e,crystalline/openc2e,ccdevnet/openc2e,ccdevnet/openc2e,ccdevnet/openc2e,ccdevnet/openc2e,bdonlan/openc2e,ccdevnet/openc2e,bdonlan/openc2e