dsp: rtac: use accurate stream id during rtac asm apr call

Hard coded stream id fails rtac call for subsequential gapless stream
which uses stream id other than default value. To get/set rtac for
gapless session successfully, we need to update the stream_id as a part
of asm apr header with correct value populated from asm session table.

Change-Id: If4afd73b4cf11bf91730a58ae6dff03efb04519d
Signed-off-by: Weiyin Jiang <wjiang@codeaurora.org>