ALSA: hda - make sure there are enough input labels and paths

I found a codec configuration which had six inputs, so the max of
five was not appropriate.

Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

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

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