ASoC: msm: qdsp6v2: don't send calibration if size is 0

Not all of streams have calibration data. NT mode decoders or encoders
don't have calibration data. If calibration data is 0, don't send data
to ADSP.

Change-Id: Ib297b66f520e1ae21a41fb3ba7e56adb3e71cdbf
Signed-off-by: Fred Oh <fred@codeaurora.org>