ENGR00218421-1 ESAI: Setup virtual device under ESAI sound card

ENGR00218421-1 ESAI: Setup virtual device under ESAI sound card

For ESAI sound card, ESAI driver setup device 0 for raw ESAI playback
and capture.

In this patch, add ESAI virtual device 1 under ESAI sound card. Device 1
is for ESAI audio p2p playback. Every time user use device 1 for
playback, ASRC would be called defaultly. Thus for device 1, it can
support all sample rate between 8k ~ 192k.

Signed-off-by: Chen Liangjun <b36089@freescale.com>