ASoC: codecs: ES8326: change members of private

Merge series from Zhang Yi <zhangyi@everest-semi.com>:

We found that using 0x45 as the default value for interrupt-clk
would cause a headset detection error.So we took 0x00 as the default
value for interrupt-clk and passed the test.
We removed mic1-src and mic2-src, which were not used.