The internal analog power and hp Vref of es8326 should always be on to
reduce pop noise. The HP_VOL and HP_CAL are moved to es8326_mute function
so they are turned on at last and turned off at first.

Also, the calibration should be done manually once during start-up
to reduce DC offset on headphone.
Signed-off-by: Zhu Ning <zhuning0077@gmail.com>
Link: https://lore.kernel.org/r/20230714032453.3334-1-zhuning0077@gmail.comSigned-off-by: Mark Brown <broonie@kernel.org>