ALSA: hda/realtek - Fix headset and mic on several Asus laptops with ALC256

Enable jack sensing and fix internal mic and headset mic on
Asus X555UB and X540SA.

Fix internal mic and headset mic on Asus E402NA and E403NA.

Fix headset mic on Asus X541UV, X541SA and Z550SA.

Unfortunately jack sensing for the headset mic is still not working.
We believe this is a codec limitation.

Some of these quirks were authored by João Paulo Rechi Vita.

Signed-off-by: Chris Chiu <chiu@endlessm.com>
Signed-off-by: Daniel Drake <drake@endlessm.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>