sscall: Break `enqueue_for_playback' into 2 separate functions
sscall: Break `enqueue_for_playback' into 2 separate functions

Signed-off-by: Dimitris Papastamos <a91262282f71bb8488398dcc9202f777d0206664@opensource.wolfsonmicro.com>

Drakevr/sscall,Drakevr/sscall