ALSA: hda - Fix wrong HP pin detection in snd_hda_parse_pin_def_config()

snd_hda_parse_pin_def_config() has some workaround for re-assigning
some pins declared as headphones to line-outs.  This didn't work properly
for some cases because it used memmove() stupidly wrongly.

Reference: Novell bnc#637263
	https://bugzilla.novell.com/show_bug.cgi?id=637263



Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>