ASoC: wcd9330: Correct HPH turn on and shutdown sequences

  There is glitch on BUCK_OUT and NCP_VNEG when doing HPH shutdown
sequences. The root cause is NCP is not turned off before Class H
block disabled.
  For HPH turnon sequences, make sure NCP turn on happens after Class
H block enabled.
  For HPH shutdown sequences, make sure NCP turn off happens before
Class H block disabled. Ensure the clock is disabled after turning
off the class-H controller

CRs-Fixed: 890588
Change-Id: I880806c0a7284aa22c9d78286efbed73544b2356
Signed-off-by: Walter Yang <yandongy@codeaurora.org>