[1/2] Base: Change of default stream type controlled by volume rocker capabilities

PS2: first attempt to include empty default mode

PS11: none default value working

PS18: cleanup, change of by default altered stream to STREAM_RING at phones

OmniGears: https://gerrit.omnirom.org/#/c/2376/
Change-Id: I78d26b0bd41f5b58514ae9c68208a8c950396823