This patch defines a fixup 'alc_fixup_no_depop_delay', which sets alc_spec flag
'no_depop_delay' to indicate skipping delay in Realtek codec suspend/resume.

And Intel Baytrail BayleyBay board applies this fixup to reduce driver
suspend/resume time.
Signed-off-by: Mengdong Lin <mengdong.lin@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>