ALSA: hda - Remember connection lists

The connection lists are static and we can reuse the previous results
instead of querying via verb at each time.  This will reduce the I/O
in the runtime especially for some codec auto-parsers.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --cc sound/pci/hda/hda_codec.c
Simple merge

diff --cc sound/pci/hda/hda_codec.h
Simple merge