ALSA: hda - Fix internal mic boost on three Thinkpad machines

The internal mic boost is so noisy on boosts 2 and 3 so they are
unusable in practice.

BugLink: https://bugs.launchpad.net/bugs/1213055


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