ENGR00215851 ASRC:fix datawidth type mismatch

ENGR00215851 ASRC:fix datawidth type mismatch

When ESAI call ASRC for p2p playback. The datawidth may be
changed. The cpu dai would configure the ESAI data width according
to the modified datawidth(output_bits). The type mismatch between output_bits
and cpu dai's switch branch cause cpu dai's hardware parameter set
fail.

Match the type of output_bits to the switch branch in cpu dai's hardware
parameter configuration function.

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