ALSA: hda - Make snd_hda_get_input_pin_attr() helper

Make the helper function to give the input-pin attribute for jack
connectivity and location.  This simplifies checks of input-pin jacks
a bit in some places.

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

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

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

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

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

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

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