ASoC: rt1011: Add a flag for the R0 calibration test

The factory test needs to know whether the calibration completed.
This flag helps to confirm the calibration completed or not.

Signed-off-by: Shuming Fan <shumingf@realtek.com>
Link: https://lore.kernel.org/r/20190806091459.14382-1-shumingf@realtek.com


Signed-off-by: Mark Brown <broonie@kernel.org>